A New Jersey man was shocked when police informed him that the $100 bill he withdrew from his bank to pay taxes earlier this month was a masterfully made counterfeit.
What the man may not have realized is that the State Department has confirmed a rash of these almost undetectable counterfeits, called "supernotes," have been flooding the U.S. from North Korea in a form of monetary sabotage one former FBI agent warns could constitute an act of war.