Sure. And then some guy tried to hide a bomb in his shoe and now we all have to take our shoes off at the airport. And we can't give the appearance of racial profiling even though everyone who has hijacked or attempted to hijack a plane in the last 15 years has been Arab, so we "randomly" stripsearch some white grandmother or an infant. And we aren't allowed to carry water on the plane in a sealed container because that's totally something a terrorist would do; everyone knows the key to a successful hijacking is proper hydration. Also shampoo. Terrorists love shampoo. You buy that shit when you get where you're going, dammit!
The TSA is a sham, a masquerade to give the illusion of security. So is banning ammo. There are thousands of people in this country stockpiling ammo for dozens of different reasons; if one of them were to snap, it wouldn't matter if you had banned all the guns and the ammo. You're trading in the freedoms of the law-abiding for the illusion of security in the wake of a tragedy, but you'll never be truly safe from the actions of a psychotic lunatic. Crazy people do crazy things, and we cannot sacrifice our freedom in the hopes that it will somehow cause crazy to stop.