Three Big Things - 4/28

1. Happening now in Milwaukee, teams are repairing roofs and crews are chopping up toppled trees after the wild weather that swooped through unexpectedly yesterday afternoon. 2. Even as officials insist that law enforcement did not fail on Saturday night, the Justice Department says the alleged, would-be assassin at the White House Correspondents' Dinner came horrifically close. 3. Taylor Swift is making a new move to protect herself in the fast-growing world of artificial intelligence.