Granted! That physicist is an idiot.

Thinking that he can strike terror in the Pentagon by attacking it

with a model aircraft fitted with a small amount of high-explosives.

But it’s clear that terrorists and wannabees sre now thinking outside the box.

A model aircraft fitted with a small cylinder full of sarin, cyanide or anthrax

would probably be a potent threat that is now highly plausible.

I read a short story nine years ago, after 9/11,   in ‘which fictional’ Al-Qaeda’

terrorists struck  Las Vegas with a model aircraft fitted with an anthrax dispenser. In that story, over 7000 died.