?He said the robber at
the adjacent teller station kept one hand behind his back at all
times until the teller began doling out dollar bills. The robber
demanded a stack of larger bills instead and moved both hands to
the window to collect the cash. Within seconds, Fawzi drew his
handgun, racked a round in the chamber and told the man that he
wasn’t robbing the bank? (All?s well that ends well
but I don?t advise carrying pistols with empty chambers;
you may neither have the time nor the use of the second hand to
rack the slide. I also don’t advise carrying handguns in
briefcases instead of holsters.)

http://blog.mlive.com/annarbornews/2008/06/customer_foils_bank_robbery_at.html

The Second Amendment IS Homeland Security !