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WASHINGTON (AP) — Doctors are scouring medical reports from hospitals treating the sickest COVID-19 patients for the best advice. For now, it's to use the care that is standard for severe pneumonia. Experts see distinctive patterns of infection when looking at scans of patients' lungs. But so far, that's offering little help in predicting which patients will deteriorate. The new virus causes mild to moderate symptoms in the vast majority of patients. But if other countries have the same experience as China, 5% could become sick enough to need intensive care, especially seniors and others with existing health problems. 637

Two Chicago police officers were killed Monday after being struck by a metro train, authorities said.Conrad Gary and Eduardo Marmolejo were responding to a shots fired call on the city's South Side when a passing train hit them, Chicago police Superintendent Eddie Johnson told reporters.The officers were searching an area near train tracks at 103rd Street and Cottage Grove Avenue when they were struck, Johnson said. The train had been traveling at 60 mph to 70 mph, he said."While doing the most dangerous thing any police officer can do, and that is to chase an individual with a gun, these brave young men were consumed with identifying a potential threat to their community and put the safety of others above their own," Johnson said.A suspect was ultimately taken into custody and a gun was recovered, Johnson said.Gary, 31, had been on the force 18 months. Marmolejo, 37, joined the department 2 1/2 years ago, Johnson said.The men, both fathers, lost their lives just a week before Christmas."This holiday will never be the same for those two families," Chicago Mayor Rahm Emanuel said. "And while our hearts are with them, we lost people who answered the call to make Chicago a better place. We go about our lives not thinking twice and we can do that because of the men and women in the Chicago police department."Johnson asked Chicago to pray for the families of the officers, and for the men and women of the officers' 5th district, "who, even tonight, would stop at nothing to safeguard their community," he said."This has been an immensely difficult year for the Chicago police department," Johnson said, "And especially for the men and women of the 5th district where they have faced tragedy after tragedy this year." 1746

WASHINGTON, D.C. – For only the third time in U.S history, an American president faces the specter of impeachment.Having taken an oath, U.S. senators will act as a jury in the impeachment trial. A half-dozen members of the House will act as prosecutors and President Donald Trump will have his own defense team against charges of obstruction of congress and abuse of power."We're achieving what no administration has ever achieved before and what do I get out of it? Tell me. I get impeached,” President Trump told those gathered for an agriculture convention in Texas this past weekend.While impeachment trials have basic rules set out in the 19th century, senators can vote to amend them. Georgetown law professor David Super said that happened during President Bill Clinton’s impeachment in the 1990s.“They set up a bunch of special rules, but they didn't amend the permanent rules,” Super said. “So, the rules that we have go way back.”Then, there is the role of Chief Justice John Roberts who, by law, presides over the trial. Super said the chief justice’s role is critical, as he will rule over questions about evidence – though, a majority of senators could vote to overrule him.“There are a majority of Republicans in the Senate. So, in theory they could overrule the chief justice's decisions,” Super said. “But the chief justice was appointed by a Republican president, confirmed by a Republican Senate. And I'm not sure that almost all of the Republicans in the Senate are prepared to overrule his rulings.”So how long could all of this last? Experts say to look at it in terms of weeks, not months.“I don't think that either side has an incentive to have it go very long,” Super said.It remains to be seen whether or not witnesses will be called during the impeachment trial. The issue is bitterly dividing Republicans and Democrats – with Democrats arguing they should be allowed to call witnesses. 1924

United States Secret Service director Randolph "Tex" Alles is being removed from his position, multiple administration officials said.President Donald Trump instructed his acting chief of staff, Mick Mulvaney, to fire Alles. Alles remains in his position as of now but has been asked to leave.</p>The Secret Service director reports directly to the Secretary of Homeland Security, Kirstjen Nielsen, who resigned on Sunday amid growing pressure from the President. The director oversees the Secret Service's work on both protection and investigations."There is a near-systematic purge happening at the nation's second-largest national security agency," this official says.United States Citizenship and Immigration Services director Francis Cissna and Office of the General Counsel's John Mitnick are expected to be gone soon, and the White House is eyeing others to be removed.The President in recent weeks empowered Stephen Miller to lead the administration's border policies "and he's executing his plan" with what amounts to a wholesale decapitation or the Department of Homeland Security leadership, the official says.Neither the USSS nor the White House immediately responded to requests for comment.Alles 1228

US Border Patrol agents are searching the Rio Grande River for a missing 2-year-old girl.The toddler, a national of Brazil, was crossing into the US from Mexico, according to a statement from US Customs and Border Protection.The agency was alerted to the missing girl late Monday after a woman from Haiti was detained by agents at the Del Rio Border Patrol Station, the statement said. She told agents that she lost her 2-year-old daughter while crossing the Rio Grande River near Del Rio, Texas."Any time a child is lost it is a tragic event," said Del Rio Sector Chief Patrol Agent Raul L. Ortiz. "I can not imagine the anguish the parents of this young girl must be feeling and I hope our search efforts pay off with a positive outcome."Border Patrol agents and law enforcement teams from Ciudad Acuna, Mexico have been searching for the missing girl since Monday night, the statement said. The search went through the day Tuesday with an underwater vehicle, a dive team and boats, CBP said.The search effort comes a little more than a week after a Salvadoran father and daughter drowned in the Rio Grande trying to cross into the US near Brownsville, Texas.The child, Angie Valeria, was a month away from her second birthday.They were hoping for an appointment to receive political asylum in the US, according to Julia Le Duc, who captured a haunting image of their bodies in the river.The photo served as a reminder of the dangers migrants face as they journey to the US, which advocates have warned will only increase as US policies make it harder for asylum seekers to come through ports of entry. 1616

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