Syrian troops have launched a bloody assault to retake Homs, Syria’s third largest city. Less than a week after agreeing to an Arab League peace deal, the Syrian government has begun waging what many are saying is its most violent crackdown in the eight-month uprising. At least 110 people have been killed in the past five days in Homs. The United Nations says at least 3,500 people have now been killed in Syria since the crackdown began in mid-March. The Arab League has called for an emergency meeting, but it will not be held until Saturday.