The risk of war on the Korean peninsula remains high, and the U.S. government is raising it higher by opening an economic front. In September 2005, one day after regional negotiations produced an agreement with the potential to defuse North Korean-U.S. tensions, the U.S. government charged North Korea with counterfeiting $100 bills. Calling this alleged North Korean effort a direct attack on U.S. sovereignty and technically an act of war, Washington imposed an ever-tightening and ever-widening web of financial restrictions on the country.