Yep. Real possibility. Then they go home and have no regret or consequences, but the rest of use have to live with it. Maybe something to be said for the RC community to stand up against this short of thing.
There is by far more wide open, very beautiful country to fly over in the US, no need to fly in the cities. Think of Maine, Vermont in the fall. Every state has areas where FPV would give great footage. The west has more to offer then one could possible explore in several life times.
We do not need another terroist trying to deliver bombs using FPV or RC.