2 guys and tools standing on what appears to be a sagging sheet of plywood suspended by a couple of ropes. I can only imagine how loud that must have been driving all those rivets.
If they aren't bike thieves they sure look guilty of something. Growing up I had several bicycles. Everyone of them was stolen from me.
Don't feel bad Col. a lot of us who never flew a plane under a bridge were punished by the government with a tour in Viet Nam. I don't care who thinks that's political.