Re: @Big John -- Right, that's the worry.
> And it'd be devastating at considerably lower powers too (which would make it even more practicable).
And if it were an IR laser, they could torch hair with less risk of political blowback from burning a lot of retinas. However, I failed to consider the very narrow beam; unless the cannon is exactly at head height and the crowd is on a level field, not much action. Even then, variable height mobs would be a problem.
Biting the hand that feeds IT
