Later identified as the balloon the child lost at the circus this afternoon
On a slightly, ( but just slightly) more serious note, there are a LOT of weather balloons sent up, even hobby APRS transmitters can be modified so that amateurs can get GPS altitude readings when over 80,000 feet. (look at Byonics
Byonics - GPSs for GPS5, and GPS5HA)
It seems like a boy scout / science project level exercise to launch model rockets and weather balloons.
www.tracksoar.com
The most likely two things to happen that will make lots of sense are.
1. Make sure everyone understands the rules about sending up balloons.
2. Put optical trackers / medium power lasers on pods (external fuel tank size ) that can take out the relativly cheap balloons without using very expensive missiles.
On a less serious note... Something I came across a while ago, and I've been trying to find the popular science / popular mechanics advertisements for the black cylindrical balloons. but I couldn't find the advertisements.
Thanks
Joel