What a Balloon Can Do That Satellites Can't Do?

The United States and China carry out different types of clandestine Internet intelligence collection efforts against each other. The fact that those kinds of activities happen shouldn't be surprising, he says. But what a balloon can do that satellites can't do is an interesting question; it raises technological questions. Since the Cold War days of the US flying sort of U2 aircraft over the Soviet Union, this type of activity in another country's sovereign airspace has become less necessary with space-based assets.