Colorado governor signs landmark gun bills - Article Photos 4/5

House Bill 13-1228, requiring background checks for the purchase of guns, awaits the signature of Colorado Gov. John Hickenlooper at the Capitol in Denver on Wednesday, March 20, 2013. Hickenlooper signed three control bills into law on Wednesday that place new restrictions on firearms and signaled a change for Democrats who traditionally shied away from gun control debate in Colorado. (AP Photo/Ed Andrieski, Pool)