I have to imagine it's keeping quite a few secret service agents awake at night thinking about how on Earth they're going to safely and effectively jam DC-6GHz in a large open outdoor area --- because it's absolutely inevitable that they will eventually have to as this technology becomes cheaper and better. Ultimately, I think we'll just see these types of political events go away as the security risks are unable to be mitigated.

When you can see racing drones going 150+ mph on YouTube, and you can also see videos of handguns attached to drones, it's really amazing that this isn't occuring all the time.

Edit: maybe I'm overestimating the difficulty here. They really only need to jam the ISM and cellular bands, everything else is hard to import due to FCC regs, and thus doesn't get made in the first place. I don't think terrorists will be able to make their own custom spread spectrum transmitters and receivers for their drones. Then again, GNURadio and cheap devices makes this pretty easy nowadays.