Fascinating, yet silly, and also scary (in the military industrial complex sense).
Can you hear pictures? https://www.youtube.com/watch?v=eUzB0L0mSCI
Also note at the end what he says about keystrokes and passwords. There's ways around this by simply changing your typing pattern or playing some Merzbow while you type at home on your computer, but more importantly, if you want true digital security, don't be on the internet. Meanwhile be smart and stop making everything so easy for your enemies (and that's everyone who doesn't trust you, basically... so 99.9% of the world).