President Obama, accompanied by Secretary of State Hillary Rodham Clinton, speaks Sept. 14, 2012, during a ceremony at Andrews Air Force Base, Md., marking the return to the United States of the remains of the four Americans killed earlier in the week in Benghazi, Libya. (Associated Press) **FILE**

Photo by: Carolyn Kaster

President Obama, accompanied by Secretary of State Hillary Rodham Clinton, speaks Sept. 14, 2012, during a ceremony at Andrews Air Force Base, Md., marking the return to the United States of the remains of the four Americans killed earlier in the week in Benghazi, Libya. (Associated Press) **FILE**