MEXICO CITY — More than 50 U.S. lawmakers sent a letter to President Barack Obama urging him to enforce a ban on importing assault weapons, saying many such guns are later smuggled south to arm Mexico's ruthless drug cartels. "They come to the United States from Europe and other places, and they make their way down to Mexico," Rep. Eliot Engel, a New York Democrat, told reporters in Mexico City on Wednesday. The ban was implemented under the administrations of... (GunPolicy.org)