It's a bird! It's a plane! No, it's two-dozen government surveillance balloons over America
Back at base, bugs in the software. Flash the message, 'Something's out there'… Floating in the summer sky, 99 Fed balloons go by
By Shaun Nichols in San Francisco 2 Aug 2019 at 22:11
Uncle Sam is testing a system that uses high-altitude balloons to conduct surveillance over American soil.
Government contractor Sierra Nevada Corporation – the aerospace company, not the brewery – has released balloons that will drift over a large area in the United States' Midwest, and form a network capable of monitoring and tracking activity on the ground over massive distances.
The Pentagon-ordered tests, involving 25 balloons cruising at 65,000-odd feet, will run from July 12 to September 1. It is understood the craft are carrying radar equipment to track the movement of vehicles far below.
Mid-July, Sierra Nevada successfully filed the necessary paperwork with America's comms watchdog, the FCC, to obtain permits for wireless communications from the balloons. They will float over South Dakota and then move into neighboring Iowa, Minnesota, Wisconsin, Missouri, and Illinois. The filings sought permission for Sierra Nevada to use various radio frequencies over the area as well as inform those who are in the flight path of the trial.
https://www.theregister.co.uk/2019/08/02/government_spy_balloons/