One problem appears to be likely: after a few more well-publicized tragic events, a much larger number of states could easily manage to pass tighter regulations. These precedents will give the urban populations a feeling of greater security, allowing later passage of further restrictions.
The second problem will be an indirect, sometimes unrelated result: the upward spiral in the cost of ammunition well ahead of inflation, with little chance that a shrinking supply of surplus ammo (if not destroyed by UN/Brit-Euro "arms control groups") could become as cheap per dollar values, as it was reported to have been years ago.
To sum it up, we can relax, and trust Senators such as Schumer, Feinstein, Boxer, Franken, former mayors such as Bloomberg to allow us "reasonable gun control", can't we? Who needs the NRA? Look at how many hunters care nothing about guns that they say (assume) "Aren't used for hunting".
coonan1911: So many think it can't ever happen here, but the enemies of freedom only need one bite at a time, and we are already being conditioned to this.
My fellow Americans are often complacent about the long-term, when we are victorious resisting or limiting today's threats.