Federal prosecutors in Manhattan charged a Kenyan man with plotting to stage an attack in the style of Sept. 11 at the direction of al-Shabaab, a terrorist group that serves as al Qaeda’s principal wing in East Africa. Cholo Abdi Abdullah, 30 years old, traveled to the Philippines in 2016 to train as a pilot and researched how to hijack an aircraft in preparation for crashing a commercial aircraft into a building in the U.S., Manhattan federal prosecutors said. They said he acted at the direction of an unidentified senior al-Shabaab commander who was also responsible for planning a 2019...