With nearly 12,500 people reported killed in drug-related violence in Mexico this year, the Obama administration is belatedly taking a small step to curb the flow of guns from US dealers to the drug cartels. In May, Mexican President Felipe Calderón visited Washington and urged the Congress and president to dam up the river of guns – more than 60,000 in four years – coursing south. Mr. Calderón wants Congress to reinstate the prohibition on assault weapons, a... (GunPolicy.org)