Selina Wang reports on Pres. Trump's now exempting smartphones, computers, and other electronics from the latest round of tariffs, a reprieve for tech companies; Meteorologist Jeff Smith with the timing and tack as a slow moving wintery storm hits the I-95 corridor; Chilling new details about a teen's alleged plot to overthrow the government, including plans to assassinate the president; Ike Ejiochi on the highly trained divers scouring the Hudson for the main rotor and other wreckage after that sightseeing helicopter fell out of the sky plunged into New York's Hudson River and more on tonight's broadcast of World News Tonight. 

Aaron Katersky has the latest on the investigation into the firebombing of the state residence of Pennsylvania Gov. Josh Shapiro while he and his family were asleep, with an arson suspect now facing attempted murder and terrorism charges; Stephanie Ramos reports on the 5.2 magnitude earthquake felt across Southern California as millions brace for aftershocks; Terry Moran has details after El Salvador's Pres. Bukele said he has no plans to return the Maryland husband and father who was wrongly deported to a Salvadoran prison; David Muir shares golfer Rory McIlroy's message to his four-year-old daughter after winning the Masters on his 17th try; and more on tonight's broadcast of World News Tonight with David Muir.