We have not seen the YouTube clip that will serve as "incontrovertible" evidence of the following, nor is there any indication that Iran is actually aware of the NSA and that it intercepts every form of electronic communication (and when such communication is not available, one is made up), but since we have no reason to doubt the US government or its pristine, best intentions with or without YouTube clips, it is only obvious that the latest development in the Syrian/Iranian/Qatari/Saudi/Israeli soap opera is definitive proof that a US attack must happen to punish not only evil Assad but the just as evil Iranians, who dare to contemplate retaliation in the case of the latest defensive US war of aggression.
From the WSJ [6]:
The U.S. has intercepted an order from Iran to militants in Iraq to attack the U.S. Embassy and other American interests in Baghdad in the event of a strike on Syria, officials said, amid an expanding array of reprisal threats across the region.
Military officials have been trying to predict the range of possible responses from Syria, Iran and their allies. U.S. officials said they are on alert for Iran's fleet of small, fast boats in the Persian Gulf, where American warships are positioned. U.S. officials also fear Hezbollah could attack the U.S. Embassy in Beirut.
...
The Iranian message, intercepted in recent days, came from Qasem Soleimani, the head of Revolutionary Guards' Qods Force, and went to Iranian-supported Shiite militia groups in Iraq, according to U.S. officials.
In it, Mr. Soleimani said Shiite groups must be prepared to respond with force after a U.S. strike on Syria. Iranian officials didn't respond to requests for comment.
Iraqi Shiites have been sympathetic to the Alawite-dominated government of Syria and oppose U.S. strikes against the regime of President Bashar al-Assad.
U.S. officials said the U.S. Embassy in Baghdad was one likely target. The officials didn't describe the range of potential targets indicated by the intelligence.
Somewhere out there, there is, or will be, a YouTube clip, which shows Iran launching ballistic missiles at the cornucopia of US destroyers parked in the vicinity of Syria:
The destroyers positioned in the Eastern Mediterranean are equipped with—in addition to Tomahawk missiles that could be used against Syria—the Standard Missile-3, which could be used to intercept ballistic missiles should Iran launch a retaliatory strike, officials said.
Then there are, or will be, YouTube clips showing "vicious offensives" by Syria against the opposition. Even more "vicious" than the YouTube clips "proving" Assad launched the chemical weapons against the opposition:
Syrians could also respond with "a vicious offensive" against the opposition inside Syria, said Aaron David Miller, a former top Middle East negotiator in the State Department who now is a vice president at the Woodrow Wilson Center. Such a move, he said, would be a way "to demonstrate defiance" without running the risk of hitting American targets.
And if that doesn't happen, there will be a YouTube clip showing Hezbollah attacking the US, Israel, or whatever other US ally was currently easiest to edit in the NSA's evidence manipulation room:
Some officials believe a direct response from the Syrian or Iranian governments is less likely than reprisals from allied militant groups, such as Hezbollah.
Hezbollah, whose members have been fighting alongside government forces against the Syrian rebellion, could be used to launch rocket attacks against U.S. military assets or American allies, including Israel.
But the funniest YouTube clip proving beyond a reasonable doubt a US war of aggression was really a defensive one, is when the French are attacked:
French officials said they are concerned Hezbollah could target the hundreds of French troops taking part in a U.N.-backed peacekeeping mission in southern Lebanon.
And so forth. That US foreign policy has devolved into a false flag hypothetical narrative chain is beyond deplorable: in the past at least they tried to make it somewhat credible. Now Kerry's minions are appealing to the lowest common Kardashian-watching denominator. Which is why we know for sure: no matter just how preposterously idiotic the next false flag will be: there will be YouTube clips!