I'm suggesting we JAM 2.4Ghz around the Whitehouse lawn.
We need to do that everywhere. It's not as if presidents are the only people who ever get attacked.
Then I'm suggesting we track WiFi signals in an effort to catch the pilot, not the aircraft.
Another reason we have to do it everywhere (and over a broader range of frequencies). If the defender has lots of resources (might be capable of tracking and/or retaliating), then the attacker will use at least one relay node. As attacker, I'd be a mile away transmitting 433 MHz or 915 MHz (*) to the node near the whitehouse lawn, and then that thing retransmits the command at 2.4 GHz (**) to the vehicle.
(*) We're going to try to stay within legal frequencies here, because in the course of the assassination, it's important that we don't break the law.
(**) Per the agreement that the vehicle must receive commands on 2.4 GHz, in order to make the contest fair (***). You have to give the defender a fighting chance. (Your honor is at stake!)
(***) But if the government takes the common-sense precaution of jamming most frequencies and over the entire country of their jurisdiction (to protect all citizens, not just presidents) then one might argue that fairness suggests the attacker should be freed of the 2.4 GHz requirement. I think balancing the rules will be a subtle and important part of formulating the contest rules. It's not as easy as it sounds.