"Positions have hardened in the international standoff over Syria, as US officials said privately that a flood of previously undisclosed intelligence... convinced them the Syrian regime had used chemical weapons against its own people... One crucial piece of the emerging case came from Israeli spy services, which provided the CIA with intelligence from inside an elite special Syrian unit that oversees Assad's chemical weapons, Arab diplomats said." ('Flood of intelligence' proof of chemical strike, Adam Entous/Sam Dagher, The Australian/The Wall Street Journal, 29/8/13)
Didn't Einstein once say: "Only two things are infinite, the universe and human stupidity; and I'm not sure about the universe"?
[PS - 30/8: "The bulk of evidence proving the Assad regime's deployment of chemical weapons... has been provided by Israeli military intelligence, the German magazine Focus reported... Senior Israeli security officials arrived in Washington on Monday to share the latest results of intelligence-gathering, and to review the Syrian crisis with national security adviser Susan Rice." (Israeli intelligence 'intercepted Syrian regime talk about chemical attack', Harriet Sherwood, theguardian.com, 28/8/13)]