It seems like any skilled politician would be able to spin this to his or her advantage by merely pointing out WHY it's a bad idea, but acknowledging a need to keep guns away from those suspected of terrorist intentions and then using this moment to fix a bigger flaw in our system.
Do you think being suspected of terrorist intentions by a government agency should be grounds for terminating one's "right" to bear arms? Is it really a right if it can be terminated on mere suspicion? The DHS has made it clear that they have a very broad view of what constitutes terrorist intentions. Remember the leaked MIAC report? It gave us a look into how these people think. If you have a point at which you'd be willing to resist the government with force of arms, i.e. if you believe in the rationale behind the Second Amendment (if you're an "insurrectionist," as they put it), it's perfectly conceivable that you could wind up on that list. Lots of the **** I say on this forum could probably get me on the list. Lots of us joke about how if you're not on some government list, you're not doing it right. Now we have people seriously suggesting that people on such a list should be stripped of rights. It is more than a little concerning.