Copernicus
Industrial Grade Linguist
All countries spy on each other.
WTF.
The huge Chinese surveillance balloon didn't pose an immediate threat to commercial air traffic. The subsequent three were all within the altitudes that airliners fly at, so they had to be shot down. It does look like all of them carried payloads that were probably conducting surveillance on ground communications. The one shot down over Lake Huron may have been spying on the communications around the ICBM silos, possibly monitoring cell phone traffic.