US defends decision to shoot down three unidentified objects

The White House has defended the shootdowns of three unidentified objects in as many days even as it acknowledged that officials had no indication the objects were intended for surveillance in the same manner as the high-altitude Chinese balloon that traversed American airspace earlier this month.
The three objects, including one shot down on Sunday over Lake Huron, were travelling at such a low altitude as to pose a risk to civilian air traffic, said White House national security spokesman John Kirby.