My wife and I have both said that same thing to each other over the past 3 years of reading various articles, watching TV shows, investigative reporting, many dealing in these "what-if" scenarios. It's like they(?) are trying to prepare the general population's mindset for the "when" not "if".
The treasonous pukes of both parties and the Kenyan muslim terrorist in the White Hut certainly are trying to bring in enough additional muslim terrorists to get the job done.
The government is the enemy of the citizens of the USA, and after such a scenario, the vast majority of survivors will recognize this fact.