YAAAAAAAAAAAAA The USA left that stance 100's of years ago.. Fema could throw you all into concentration camps and you would not lift a finger. The America american's are so proud of is LONG dead, long dead. Only a country of debt slaves remains, scared of their own shadow. No real American would of let the "patriort" act be signed in, it's over boys.
You don't actually know that much about the US, do you?
First, FEMA (the Federal Emergency Management Agency) is primary tasked with natural disaster relief (hurricane cleanup, flood evacuation, etc.). When it comes to throwing people in "concentration camps", they are at the bottom of the list next to the US Postal Service.
Second, public knowledge of those types of actions by the Federal government result in a enormous PR backlash on the administration, see Waco and Ruby Ridge as prime examples.
Third, there are more armed citizens in the US than there are military and paramilitary soldiers in the entire world (over 120 MILLION). Owning and using firearms is a cultural phenomenon in the US, has been for over 200 years, and this is very unlikely to change in our lifetimes. Forcible disarmament is even less likely than anyone successfully occupying Afghanistan.