Comment: Kerry just announced he has, quote, "proof"

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In reply to comment: Are they not claiming it is (see in situ)

Kerry just announced he has, quote, "proof"

Hilarious, if it wasn't so sad.

White House Claims Proof Assad Used Sarin Gas

The Obama administration says it has physical proof that the regime of Syrian President Bashar al-Assad used sarin gas in an attack.

PS I have an updated post on reddit about sarin with more proof

Tools of war are not always obvious. The worst weapon is an idea planted in the mind of man. Prejudices can kill, suspicion can destroy, and a thoughtless, frightened search for a scapegoat has an everlasting fallout all of its own.