Cover Ups Conspiracy: The Chinese Spy Baloon

Since the end of January, four mysterious objects, including an alleged Chinese spy balloon, have been sighted in U.S. and Canadian airspace and were all subsequently shot down by the U.S. military. The Pentagon has stated that it knows nothing about the three downed objects, neither where they came from nor what their purpose is. Will this really be the case? Or is this yet another attempt by the U.S. government to hide the presence of extraterrestrials on earth from the world public?