Panetta: no military action in Syria without UN OK

US Defense Secretary Leon Panetta says he does not see the U.S. taking military action in Syria without the backing of a U.N. Security Council resolution.  Panetta says his greatest responsibility is to make sure that if U.S. troops are deployed in any military role, that America has the support it needs from the international community.  His comments came a day after Susan Rice, the U.S. ambassador to the United Nations, suggested that some type of military intervention may be the only remaining option because diplomatic efforts so far have failed to remove the Syrian regime.  "No, I cannot envision that," The Washington Post quoted Panetta as saying when asked about military action without U.N. backing. Still he said that all options remain on the table and that the Pentagon is planning for "any contingency."  "But, ultimately, you know, the international community and the president of the United States are going to have to decide what steps to take," Panetta told reporters.