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The Senate committee that oversees the US aviation industry will hold a hearing on air safety, following the weekend's deadly crash in Ethiopia, the chairman of the Senate Committee on Commerce, Science and Transportation announced Tuesday."It is important to allow the FAA, NTSB and other agencies to conduct thorough investigations to ensure they have as much information as possible to make informed decisions," said Republican Sen. Roger Wicker of Mississippi in his statement. "Thousands of passengers every day depend on the aviation system to get them safely to their destinations, and we must never become complacent with the level of safety in our system. Therefore, the committee plans to hold a hearing reviewing the state of aviation safety to ensure that safety is maintained for all travelers."The announcement of the hearing follows days of lawmakers asking questions about and some demanding the grounding of the Boeing 737 MAX 8 aircraft, which was not only the model of plane that crashed over the weekend but also was the same type of vessel that went down over the Java Sea last October in a separate deadly cash.Democratic Sen. Richard Blumenthal of Connecticut, who sits on the committee, said Tuesday he's told his family and others to switch planes rather than fly on the Boeing 737 MAX 8. 1325

The suspect in Thursday's school shooting in Santa Clarita, California, that killed two victims and injured three others died on Friday, a sheriff's office homicide official confirmed to ABC News. Scripps has learned the identity of the suspect, but is not naming the suspect at this time. The suspect reportedly turned 16 on Thursday. The suspect was hospitalized on Thursday following the shooting due to a self-inflicted gunshot wound. Hospital officials said the 16-year-old suspect was in grave condition. The suspect was a junior at Saugus High School, the site of Thursday's shooting. Students Gracie Muehlberger and Dominic Blackwell were also killed during Thursday's shooting. 698

Tuesday marks the biggest day in the nominating race for Democratic hopefuls in this year’s presidential election. Nearly one-third of all pledged delegates will be up for grabs in Tuesday’s race. In total, 14 states and American Samoa will help decide who the Democratic nominee will be. Who votes?Voters in the following states, and one territory, can cast ballots on Tuesday:Alabama (52 delegates)American Samoa (6 delegates)Arkansas (31 delegates)California (415 delegates)Colorado (67 delegates)Maine (24 delegates)Massachusetts (91 delegates)Minnesota (75 delegates)North Carolina (110 delegates)Oklahoma (37 delegates)Tennessee (64 delegates)Texas (228 delegates)Utah (29 delegates)Vermont (16 delegates)Virginia (99 delegates)Remaining candidates:Sen. Bernie Sanders (60 delegates)Vice President Joe Biden (54 delegates)Sen. Elizabeth Warren (8 delegates)Mayor Mike Bloomberg (0 delegates)Rep. Tulsi Gabbard (0 delegates)Who left the race?Since Biden won in dominating fashion on Saturday, businessman Tom Steyer, Sen. Amy Klobuchar and Mayor Pete Buttigieg have all withdrawn from the race. Klobuchar and Buttigieg both endorsed Biden on Monday. Who’s the frontrunner?Going into last Saturday’s race in South Carolina, many considered Sanders the frontrunner to win the nomination. His frontrunner status has been brought into question thanks to the events of the last three days. Biden’s surge in South Carolina, plus the sudden withdrawal of several other candidates, could give Biden a boost to what was a slumping campaign. Biden’s campaign has struggled to raise money to have the sort of advertising that Bloomberg and Sanders have. But with several major endorsements, Biden has seen his share of free advertising through news reports and buzz around the campaign. Bloomberg’s entrySuper Tuesday marks the first time Bloomberg will be competing for votes. He has spent some of his fortune to put his message before voters. For instance, on Sunday during primetime, he took out advertising on several major networks to talk about the coronavirus. He also purchased ad time during the Super Bowl. But Bloomberg also did not see much of a boost coming out of two debates, his first of which involved attacks from Warren about his handling of non-disclosure agreements with his employees. What polling saysRecent polls have Sanders ahead nationally, and in leading in many Super Tuesday states including Texas and California. A caveat though is those polls were conducted before Saturday, and how Buttigieg, Klobuchar and Steyer voters sway could determine who wins the majority of delegates on Super Tuesday. How it could play outSuper Tuesday could give some clarity as to whether the race will be decided during the primary season, or at the Democratic National Convention in July. A candidate is required to win 1991 pledged delegates going into the convention. Failure to win a majority of delegates will result in hundreds of so-called “Super Delegates” to cast a ballot during a second round of voting. How likely of a scenario is a brokered convention? Election forecast site 538 gives the odds of a brokered convention at 2 out of 3. But the site also gives both Sanders and Biden a one in six chance to win the nomination outright. Why 15% matters?In order to gain delegates from a state, earning 15% of the vote is the minimum threshold. Among the candidates in each state who win 15% of the vote, the number of delegates is allocated proportionally based on their performance throughout the entire state and within the state’s congressional districts. 3588

The past year has been a wild ride of weather. There has been major tragedy, and it has been costly.Take a look back at what the U.S. has endured just in 2018:Hurricane Michael Hurricane Michael was the second major hurricane of the 2018 season, and it was a history-making storm. Michael made landfall at Mexico Beach, Florida on Oct. 10 at a Category 4 hurricane. Winds were sustained at 155 miles per hour. It was the strongest storm to make landfall in the U.S. since Andrew in 1992. Hurricane Michael was also the third-most intense Atlantic hurricane to make landfall in the U.S. on record. This was behind the 1935 Labor Day hurricane and Hurricane Camille (1969). The storm devastated Mexico Beach and nearby Panama City Beac,h leaving both nearly unrecognizable. Roads were hard to decipher as sand was carried on shore with the storm surge and pieces of buildings were strewn all over the place in the destructive wind. Homes were flattened and some swept away. Thirty-five people were killed in Florida, but 60 deaths were eventually attributed to Michael when looking at previous damage in Central America and from the storms path as it continued inland in the U.S.. The exact final cost of Hurricane Michael is still being determined, but it will likely be one of 12 billion-dollar weather-related disasters in the United States this year.Hurricane Florence Hurricane Florence was another powerful, Category 4 hurricane in the 2018 season, but this one was unique in where it made landfall and how slowly it moved onto the coastline. This slow movement amplified the impact of flooding. Florence formed as a Cape Verde low and traveled across the Atlantic in the month of September, setting its sights on North Carolina. As it approached the coast, the storm, still at Category 4 status, slowed to a crawl and started inundating the Carolina’s with heavy rain. The storm only moved west at 2 to 3 mph and eventually made landfall as a Category 1 hurricane as it weakened. But the Category 1 status of this hurricane landfall doesn’t match with the true impact of this store. This is because of the sheer volume of water dumped by this storm. Portions of coastal North Carolina recorded more than 20 inches of rain over a 5-day period — some more than 30 inches total. That led to historic crests along rivers and cut off many towns from relief efforts because roads were impassable. The rain from Florence took weeks to make it through all the streams and rivers, so flooding not only occurred during the storm but lingered for a long time, making recovery efforts that much more difficult. Florence was another weather event of 2018 that will be a billion-dollar or more disaster. It actually ranks as one of the Top-10 costliest storms in U.S. history.California wildfiresIt was a devastating year for wildfires in California. According to the California Department of Forestry and Fire Protection, nearly 8,000 fires were recorded this year burning more than 1.8 million acres of land. Increasing temperatures across the state and prolonged drought created favorable conditions. According to NOAA, July was the hottest month of record in California temperature history. The wildfire season really picked up momentum in late-July and August as the Carr Fire made national headlines, destroying 1,600 structures and resulting in more than a billion dollars worth of damages. That fire in northern California wasn’t contained until late August. According to the State of California, three firefighters died while responding to the blaze. Then attention shifted to fires like the Woolsey Fire and the Camp Fire. The Camp Fire is now listed as one of the deadliest in U.S. history after fast moving flames consumed Butte County, California in early November. 86 deaths are connected to the fire and the city of Paradise was practically destroyed by the flames. The rapid speed of the fire, fanned by 50 mph, prevented so many people from evacuating to safety. The Woolsey Fire was another one that garnered national attention as it burned through Ventura and Los Angeles counties. Hundreds of homes in Malibu were destroyed and more than 200,000 people were evacuated. It is estimated at more 1,500 structures were destroyed by this southern California fire. According to the State of California, three people did in this fire as well.Red tideThis naturally, annually occurring phenomenon gained national attention when it hit epidemic status and the weather was a large factor to its growth in the summer of 2018. Red tide is a toxic algal bloom that kills sea life like fish, dolphins and manatees along the Florida coast. It technically happens yearly, but this year, a few weather factors have been blamed for it’s large growth and duration. Record-breaking rain fell over central Florida early in the summer season, bringing a rise to water levels in Lake Okeechobee. That is where algae also grew. Fertilizers from nearby farms also infiltrated the water body. That water had to be released to the ocean so widespread flooding wouldn’t occur in central Florida. But as that water, algae and fertilizer, entered the ocean, it interacted with the red tide and caused it to grow exponentially. Basically, the algae fed the red tide and made it worse. That combined with warmer ocean temperatures sustained the toxic bloom for months on end. Red tide first closed beaches along the southwest side of Florida’s coastline just south of Tampa, but as red tide slowly moved and grew, it eventually closed beaches farther to the north beyond Tampa and into the panhandle. According to Meteorologist Jason Adams of WFTS in Tampa, Florida, red tide is still present in the month of December along a few beaches but it is projected to subside in the winter months.Rainfall records set in 2018Rainfall amounts made headlines over and over again during 2018, especially in the eastern U.S. Some of those rainfall records were associated with our two major hurricanes. But others were associated with very heavy rain producing events. According to Climate Central, 133 climate sites saw record precipitation totals this year, and 685 saw yearly totals that were among the Top 10 on record. 2018 is already the fifth-wettest year on record in the contiguous U.S. Specifically on the Island of Kauai in Hawaii, a rain gauge in Waipa recorded 49.69 inches of rain from April 14 to April 15. The highest rainfall record in a 24-hour period belonged to Alvin, Texas, where 43 inches of rain was recorded on July 25 to July 26, 1979.Tornado outbreak, April 13-15April is a common time of year for severe weather, especially in Tornado Alley, but 51 tornado reports in one day is significant. On average, 155 tornadoes normally happen over the MONTH of April.An explosive atmosphere setup was in place over Arkansas, Texas and Louisiana on April 13. Late in the evening, a cold front produced discrete thunderstorms and those storms quickly turned severe. EF0, EF1 and EF2 tornadoes ripped across the region as multiple waves of severe weather swept through into the early morning hours of April 14th. Additional rounds of severe weather followed on the 14th and 15th as the storm system moved east. Over the three-day period, 81 tornadoes were reported from Texas to Virginia according to NOAA. "Several of the tornadoes caused widespread damage, including an EF-2 that resulted in 12 injuries near Lynchburg, Virginia and an EF-1 that caused seven injuries near Reidsville, North Carolina," says NOAA. Ohio River flooding The Ohio Valley was inundated with heavy rain in the month of February. In Cincinnati, Ohio alone, 7.8 inches of rain fell in the month, most of which was concentrated in the last few days of the month. This was nearly 5 inches above normal. Previous wet soils and regional heavy rain meant that the water had to go somewhere, and that destination was the Ohio River. River levels rose to the highest levels since 1997. Cincinnati's Ohio River gauge crested at 60.53 feet, 52 feet is flood stage. But it wasn't just this city that saw substantial flooding along the river. Downriver in Louisville, Kentucky, the Ohio River crested 13 feet above flood stage — also the highest since 1997. Due to the slow nature to river flooding, it took several days for water levels to rise and fall, damaging homes and other structures along this drainage basin.Colorado hailstorm: June 18-19Hail isn't uncommon in Colorado, especially in June, but the hail that came down in June was significant. Three-inch diameter hail came down during a line of severe storms passed through on June 18, producing significant damage in the northern sections of the Denver metro. Cars were left with shattered windows and huge dents, homes were damaged and even golf courses suffered damage from the hail stones that fell at 40 to 80 mph from the sky. According to KMGH television station in Denver, the storm damaged cars and homes in the Boulder area, before moving northeast toward Fort Morgan, where 70 mph winds and baseball-sized hail wreaked havoc in Morgan County. To add insult to injury, the same area saw more severe weather the very next day including more hail and even a funnel cloud. Major southeast snowstorm A crippling snowstorm hit the southeast Dec. 8-10. While heavy snow in this portion of the county isn't out of the question, the amount of snow so early in December brought the region to a halt. This system actually started dumping heavy snowfall in northern Texas first. Lubbock recorded 10 inches of snow on Dec. 8. As the system approached the Appalachian Mountains and the effects of cold air damming, snowfall starting falling at much higher rates over Virginia and North Carolina. Snowfall amounts we staggering in some places, especially at the higher elevations. Mount Mitchell in North Carolina, which is the highest elevation in the eastern US, received 34 inches of fresh snowfall. It was 2 inches shy of the all time record. Cities such as Roanoke, Virginia received just more than 15 inches of snowfall, the third highest in recorded history during December. Raleigh, North Carolina picked up 11 inches of snowfall. But it wasn't just snow — others picked up significant ice with this system including portions of Arkansas, Tennessee and Missouri. The impact of this storm lingered even beyond the initial snowfall as snow melted and refroze overnight as black ice, causing extended travel woes.—This story was written by WCPO meteorologist Jennifer Ketchmark for The E.W. Scripps Company and its affiliates. Follow her on Twitter 10573

TripAdvisor has defended itself against accusations of misleading travelers by failing to stop some of its highest ranked hotels winning their status with fake reviews.UK consumer group Which? Travel analyzed a total of almost 250,000 reviews for the 10 top-ranked hotels in 10 global tourist destinations, from Las Vegas to Cape Town. It found that one in seven of the hotels had "blatant hallmarks" of fake reviews, with others raising "serious concerns."But TripAdvisor called the analysis "flawed" and said its more sophisticated detection tools were able to weed out fraudulent feedback.Which? Travel said that when it reported 15 of the worst cases to TripAdvisor, the reviews giant -- now one of the world's biggest travel websites -- admitted that all but one of the hotels in question had been caught using fake reviews in the past year.Six had previously been penalized, and two had received a "red badge warning" -- where TripAdvisor warns users that the hotel is suspected of using fake reviews, and has "repeatedly failed to remedy its behavior and refuses to cooperate with TripAdvisor's investigators."Yet, Which? Travel said it found that the review patterns had continued unabated despite the measures, and the red badges had been removed.The group has accused TripAdvisor of a "lack of serious ongoing action to address repeated abuse of the system."It says that five-star reviews left by new users who have written no other reviews should be a red flag. Its analysis compared the proportion of first-time five-star reviews with that of first-time three-star reviews, which are less likely to be faked.In total, it studied 247,277 reviews."TripAdvisor's failure to stop fake reviews and take strong action against hotels that abuse the system risks misleading millions of travelers and potentially ruining their holidays," said Which? Travel's Naomi Leach.TripAdvisor has removed hundreds of reviews in light of the investigation, Which? Travel claimed."Striking" evidence of fake reviewsHotels in the Middle East had "striking" amounts of fake positive reviews, according to the research. TripAdvisor docked 730 five-star reviews of the "best" hotel in Jordan following the analysis -- but the hotel has not been given a red badge. It remains in the top 10 in the country.At the top-ranking hotel in Cairo, 79% of five-star reviews came from one-time contributors. Just 14% of three-star reviews came from similar accounts.The hotel has lost its status as a result of the reviews' deletion.Las Vegas was another hotspot for fake reviews. At two of the top-rated hotels, almost half the five-star reviews came from one-time contributors. For a competitor which did not arouse suspicion, the figure was just 3%.Some of the top-ranked hotels in London, Paris, Barcelona and Cape Town "gave reason for suspicion," the research showed, but failed to demonstrate the same patterns across the board.Repeat offendersTripAdvisor called the analysis "based on a flawed understanding of fake review patterns," adding that "it is simply far too simplistic to assume all first-time reviewers are suspicious."It said that Which? Travel did not have access to IP [internet protocol] information or location data, both of which TripAdvisor uses to detect fake reviews."We analyze hundreds of data points about each review -- most of which only we have access to -- and we combine that data with a wealth of knowledge and understanding of review patterns that our team of experts has gained from tracking hundreds of millions of reviews over a near 20-year period," said the company."This includes an ability to track and analyze first-time reviews in far more detail and with far more rigor than Which's team was able to do."Online reviews influence an annual estimated ￡23 billion ( billion) of booking transactions in the UK alone, according to the UK government."Sites like TripAdvisor must do more to ensure the information on their platforms is reliable," said Naomi Leach."If they continue to fall short, they should be compelled to make changes so holidaymakers are no longer at risk of being duped by a flood of fake reviews." 4152

来源：资阳报