There are surveillance blimps down in the Florida Keys. I would think those are about drug smuggling. Anyone familiar with these?
Yea, and one in Texas... I believe they’ve been removed or were in the process of doing so.
There is a tethered aerostat in the Florida Keys. It operates at around 13000 feet and is charted on aviation charts. A couple of years ago a pilot of a general aviation aircraft struck one of the tethering cables and crashed into the ground. The air space around DC is much more congested and, if these aerostats are launched in the DC area it will only be a matter of time before some pilot hits a cable.