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LAGOS, Nigeria – Cardi B's announcement that she wants to seek Nigerian citizenship has set off a Twitter feud between her West African fans in friendly rivals Nigeria and Ghana. The Grammy-winning rapper visited both countries last month on her African tour. Her announcement 289

In the wake of mass shootings across the country, New York City area schools are starting to install bullet-resistant doors in classrooms.A yeshiva in Crown Heights was the first school in New York City to install these doors earlier this month, but before them, a school in New Jersey got the jump when the doors' manufacturer started thinking critically about his own kids' safety. 395

It's easy to forget that barely more than a century has passed since Orville and Wilbur Wright flew the first successful airplane in Kitty Hawk, North Carolina.The intervening 115 years has produced enough artifacts and knowledge to fill dedicated museums around the world.The greatest aviation museums capture the achievements and products of the pilots, designers and engineers who completed those rickety first flights then set their sights on space while we were just trying to ignore the guy clipping his toenails in seat 17B.Thankfully, there's no need to fasten your seat belt, shut off phones or worry about turbulence and legroom to enjoy the world's best aviation museums.Just enjoy the ride.Wings Over the Rockies Air and Space Museum, Denver, ColoradoWith 182,000 square feet of exhibits on the grounds of the former Lowry Air Force base, Denver's 872

Last week, James Holzhauer, a 34-year-old professional gambler from Las Vegas, became the first Jeopardy! contestant to earn six figures in a single episode, raking in 0,914 on April 9. On Wednesday, Holzhauer demolished his own record by winning 1,127. It was the third time Holzhauer the now 10-time winner has topped six figures. The previous record Jeopardy! single-game record was ,000 set by Roger Craig in 2010.After just his third episode, Jeopardy! host Alex Trebek was already making a dubious comparison. “Is it too soon to make Ken Jennings comparisons," Trebek remarked at the end of the episode. Jennings set the Jeopardy record of winning 74 consecutive episodes.He is second on the all-time non-tournament money list on Jeopardy, earning 7,787. During Jennings' initial run, he collected ,520,700. He has since topped million after participating in various tournaments. Like Jennings, Holzhauer has commanded the board, but unlike Jennings, has played a riskier game. Holzhauer has often gone for "true Daily Doubles" by signaling he is "all in" with imaginary poker chips. On Wednesday, he attempted the largest Final Jeopardy bet ever, and it paid off, although had he missed the question, he still would have won in a runaway. 1275

In recent years, scientists have noticed an increased frequency of tornadoes in the Southeast, carving a deadly path in what's called Dixie Alley.While Tornado Alley in the Great Plains still leads in the number of tornadoes, more are appearing in the South. And tornadoes shifting to this region can take a devastating toll. On Sunday, an EF-4 tornado ripped through Alabama's Lee County killing 23 people and cutting a path of destruction at least 24 miles long.It's not an anomaly that tornadoes appear in the Southeast every year, but they present different vulnerabilities, said Victor Gensini, professor of meteorology at Northern Illinois University."As you move east from Kansas to Mississippi, Georgia, Tennessee, the population density increases rapidly and we also have an issue in the Southeast of more mobile homes," he said. "If you get hit in a mobile home from a tornado, you're much more likely to be killed. You just have a really unique exposure and vulnerability problem."Gensini was co-author on a study that started tracking tornadoes in 1979 and they observed a shift towards the Southeast around 2008.Dixie Alley includes portions of East Texas, Louisiana, Arkansas, Tennessee, Mississippi, Alabama and Georgia. Tornado Alley includes the area from central Texas stretching north to Iowa, and from central Kansas and Nebraska east to western Ohio, according to the 1401

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