evidence: President Joe Biden said the mission to shoot down a suspected Chinese spy balloon off the East Coast Saturday was successful, and that he had ordered the Pentagon to knock the aircraft out of the sky as soon as it was safe to do so. "On Wednesday when I was briefed on the balloon, I ordered the Pentagon to shoot it down — on Wednesday — as soon as possible," the president told reporters in Hagerstown, Maryland. "They decided, without doing damage to anyone on the ground, they decided that the best time to do that was as it got over water ... within a 12-mile limit. They successfully took it down and I want to compliment our aviators who did it," the president added. [...] U.S. Secretary of Defense Lloyd Austin said the balloon was being used by the Chinese government "to surveil strategic sites in the continental United States."