American militants like Anwar al-Awlaki are placed on a kill or capture list by a secretive panel of senior government officials, which then informs the president of its decisions, according to officials. There is no public record of the operations or decisions of the panel, which is a subset of the White House's National Security Council. Neither is there any law establishing its existence or setting out the rules by which it is supposed to operate. The panel was behind the decision to add Awlaki ... to the target list. He was killed by a CIA drone strike in Yemen late last month. The White House is portraying the killing of Awlaki as a demonstration of President Barack Obama's toughness toward militants who threaten the United States. But the process that led to Awlaki's killing has drawn fierce criticism from both the political left and right. Obama, who ran for president denouncing predecessor George W. Bush's expansive use of executive power in his war on terrorism," is being attacked in some quarters for using similar tactics. They include secret legal justifications and undisclosed intelligence assessments. Liberals criticized the drone attack on an American citizen as extra-judicial murder. Conservatives criticized Obama for refusing to release a Justice Department legal opinion that reportedly justified killing Awlaki.