Outlaw motorcycle gangs have been a thorn in the side of US law enforcement since the 1960s. Today, these dangerous organizations are engaged in criminal activities on both coasts and throughout the American heartland. “One-percenter” motorcycle clubs – so named because the American Motorcyclist Association has said that 99% of motorcyclists are law-abiding – run drugs across the borders and participate in a litany of additional crimes, from contract killing to petty theft.