Now there is direct physical evidence of Iran's involvement in the attack on KSA.
the Saudis already stated on Monday that the parts found were of Iranian source so there is nothing new here. Their statement today is that the attack was "sponsored" by Iran. What does that actually mean? Iran supplied them with the missiles and drones? Does that mean that the US "sponsored" various groups that have used US-sourced weapons (through intermediaries no doubt) to enact various attacks? Iran supplies all sorts of groups with arms as does the US and Britain and Russia.
There is no further information here as to where the missiles were launched from nor who actually pushed the button the Saudi announcement doesn't go there.
That is what most of us are waiting to see as it is that bit of information that should dictate policy. I doubt Congress would act on evidence that did not clearly show Iran as the site of the launch and Iranian operatives as the button pushers.
I'm not a fan of Iran's policies but believe accusations need to have some pretty ironclad proof when it comes to what is at stake here.