I've often thought that it must be *super* shitty to be the first soldier who goes up against the new weapon on the battlefield. Ie. the first guy who realizes his anti-tank weapons aren't strong enough to punch through a new tank, or his plane isn't nearly up to par with the enemies new secret weapon, etc. Or bringing a tried and true machine gun to fight something that turns out to be entirely made of energy and thus impervious to your one chance of winning the fight.
One of the poor guys who dies before the army can adapt :P

Wondering at what point they attack the projection towers... if you can run around town with weaponry, one would think you could do that? Seems the only way one would weaken KATE given how she works.

Ooh don't worry. They're going to do their best to down her.
Whether or not she'll let them bust up her towers is another story though...

Presumably as an AI - she could theoretically be reprogrammed/ordered to do pretty much anything though?

Must be a high cost infrastructure if they don't deploy similarly invincible things to fight fires, rescue people, etc? (or a low valuation on human lives alternatively, not like we don't see plenty of that in the real world)

(didn't see this reply till now)

Good points. Although it hasn't mentioned it greatly in the comic, my thoughts are that there are other hologram type technologies in the world, however Kate's the first to be able to interact with the world in such a powerful way. Ie. it takes a tremendous amount of energy/computing power to get one of the holo-drones to lift an object (say, while hypothetically acting as a server in a restaurant) let alone project lasers / arrest people.

Presumably for rescue operations / firefighters / etc they'd use drones/robots and the like.

Eventually I plan on doing a timeline and writeup of the YesterdayBound galaxy to explain more things like this that don't have time to get shoehorned into the comic. I should get on it, haha.