I'm no aerostat expert, but I've never heard of one with radar. I'm also not a radar expert, but don't see the advantage of placing a tiny radar on a blimp for detection of missiles and aircraft. Seems like a much larger, more capable radar on the ground would be better than the piddly radar they could put on a blimp.

This one doesn't pass the smell test for me. I'm not saying they aren't using surplus military equipment over Baltimore, but I am saying some of the facts and reasons in this article are BS.