Anti drone technology is actually a pretty decent sized market right now and there's plenty of options. I'm not an expert, but I've got a buddy who is into this

Anti drone technology is actually a pretty decent sized market right now and there's plenty of options. I'm not an expert, but I've got a buddy who is into this stuff and we've talked about this before. According to him, some companies are using high powered lasers and microwaves to destroy the drones from distance. Others offer ways to either mess up the drones GPS and send it off course or hack into the drone and take control of it. More than a few companies make large net guns that can be fired to take the drones down and I've heard of companies who train eagles to knock them out of the air. I definitely think it's a threat, but I think it's a well known threat at this point and something that is accounted for for large events. I doubt it's anymore likely than any other type of terrorist attack.