[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/08/30/costello_vert.jpg width=200 height=230 align="right"] From CNN's Carol Costello: After Osama Bin Laden was killed, Anwar al-Awlaki was arguably America's most wanted terrorist. But still, some say that's no excuse for basically murdering an American citizen. The American Civil Liberties union, which once accused Obama of "morphing into Bush" says: "The targeted killing program violates both … Continue reading Talk Back: Should the U.S. have targeted Anwar al-Awlaki despite his American citizenship?