Sept. 1 - U.S. Secretary of State John Kerry presents new evidence of chemical weapons while building the Obama administration's case for military action in Syria. Nathan Frandino reports.
STORY: Secretary of State John Kerry says the U.S. has made a critical new discovery in its investigation of the alleged chemical weapons attack in Syria. (SOUNDBITE) (English) U.S. SECRETARY OF STATE JOHN KERRY SAYING: "In the last 24 hours we have learned through samples that were provided to the United States that have now been tested from first responders in east Damascus and hair samples and blood samples have tested positive for signatures of sarin." Appearing in a series of Sunday morning television interviews, including NBC's Meet the Press, Kerry continued to build the case for military action in Syria. This comes after President Barack Obama announced plans to seek congressional approval for the use of force, describing the mission as a limited intervention. Kerry says the U.S. cannot back down. (SOUNDBITE) (English) U.S. SECRETARY OF STATE JOHN KERRY SAYING: "I don't believe that my former colleagues in the United States Senate and the House will turn their backs on all of our interests, on the credibility of our country, on the norm with respect to the enforcement of the prohibition against the use of chemical weapons which has been in place since 1925." But Senator John McCain, who has been pushing for intervention for months, says Obama's plan does not go far enough. (SOUNDBITE) (English) U.S. SENATOR JOHN MCCAIN SAYING: "What Senator Graham and I and others are seeking is a strategy and plan for bring down the Bashar Assad regime not using a single American boot on the ground. It can be accomplished and must be accomplished." A vote is expected in Congress the week of September 9.