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US, allies continue to weigh military strike against Syria

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NBC News’ Ayman Mohyeldin and Chuck Todd report on the latest challenges facing the U.S. as it weighs a military strike against Syria, including what allies on both sides of the conflict are facing; then, Michael O’Hanlon from the Brookings Institute and the Huffington Post’s Ryan Grim discuss the tough line the president is navigating when it comes to Syria.