Syrian government tries to scrub away evidence of attack with Homs assault over - World

Syria’s president defied mounting international pressure to end the year-old crackdown on an uprising against him and said Tuesday he was determined to go on fighting what he called “foreign-backed terrorism.’’ After a powerful American senator called for airstrikes on Syria, President Obama said unilateral U.S. military action against President Bashar Assad’s regime would be a mistake.