8/02: Struggle for peace in Syria; record drought, heat killing fish population

      |The anti-Assad rebels in Syria are mostly men with rifles going up against one of the largest armies in the Middle East. Charlie D'Agata is on the frontlines with the rebels who explain why they are determined to win or die trying; And, the record heat and drought are taking a serious toll on fish populations. Hotter, shallower water has less oxygen, which suffocates them. And, as Jim Axelrod reports, it's hurting people who make their living on the water.

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