On Meet the Press, Tim Russert points out a stunning press release from the White House Communications Office. The release, titled Setting The Record Straight, endorses an LA Times Op-Ed that calls for Israel to attack Syria:
"It's time to let the Israelis take off the gloves…. Israel needs to hit the [Syrian] Assad regime. Hard."
It's difficult to not interpret this as the White Communications Office officially endorsing an Israeli attack on Syria.
They have the video posted.