FP’s Noah Shachtman reports that an intercepted phone call led U.S. intelligence services to confirm the chemical attack in Syria. But the contents of the call also raise a few key questions. “Was the attack on Aug. 21 the work of a Syrian officer overstepping his bounds? Or was the strike explicitly directed by senior members of the Assad regime?”

+ According to WaPo, U.S. intelligence officials have established a timeline of the Syrian chemical attack and could present it as soon as tomorrow. The U.K. is set to take the case for action to the United Nations..

+ The New Front: A pro-Syrian leader Bashar al-Assad hacktivist group called SEA took down the New York Times and Twitter’s U.K. site for a brief time on Tuesday. GigaOm’s Stacey Higginbotham explains how they did it.