I'm not trying to dismiss the possibility of nuclear armed terrorist group (it is highly unlikely, but within the realm of possibility). However, I would definitely not classify it as the greatest threat facing the country. Nuclear bombs, terrorist attacks, insurgencies, and war are so dramatic that the public consciousness fixates on them and its easy to forget about the more mundane factors that are undermining our nation's security every single day. In my humble opinion, the greatest threats facing the United States involve no violence at all:
1) Long term, institutionalized debt (both public and private)
2) Lagging math and science scores
3) Increasing income inequality
All three of these have long term implications that will damage the primacy of the United States. What do you all think? What would be on your list?