We also have the Islamo-fascists going full bore, and that aspect of the threat to Joe and Jane Citizen is going to ratchet up.
The folks in the chocolate shop in Sydney were easy prey for the terrorist who took them hostage. If you are in a place where one of the Jihadi show up, it's up to you to get yourself and others out of harms way. Much easier to do that if you armed, than if you aren't.
If you go to malls, sports events, public buildings, churches, or any place people gather, you're at greater risk than someone who avoids those places. It would be a positive development if you had some means of self defense, since the police can't be there every second. Remember the mall in Kenya, or the attack on Bombay, or the lady beheaded at work by the newly hatched Islamist, or the young man shot at a stop sign by another recent convert to Islam, or the Canadian parliament building, and on and on. That's going to continue and to increase in scope. Especially since the current regime has no clue how to deal with it, nor any inclination to do so. They're too busy running "Operation Choke Point' or "The Truthy Project" to worry about mundane things like terrorism anyway.
If you have a clean criminal record, it's not hard to get a concealed carry permit in the Southern states. Here, the right to self defense it recognized and provided for by law. If you live in some of the states like California, New Jersey, Connecticut, et al you have to be a politician or a member of the ruling elite to get a permit.
It's worth looking into. My state has a reciprocity agreement with most of the states that issue concealed carry permits, so I can travel and retain my ability to influence negative events that may occur. I've been carrying for thirty years. In all that time, I've had to present my pistol exactly twice. On both occasions, that brought a potentially deadly situation to a screeching halt and that was the end of it. However, had I not had the pistol both of those events would almost certainly have ended disastrously for me. I'd say it was worth it. Now, more than ever before, people need to recognize that "it" can happen to anyone. Having a concealed weapon can save the situation.