And firing on a coalition aircraft in that nation's airspace does not comprise a clear and present danger to other nations.
FYI, Saddam was useful, if Dubya had had the sense to see it. He provided a counterweight to Iran...and when Saddam was gone, guess who took over by proxy in Iraq? It was the real winner of the Iraq war: Iran.
Y'all insisted on invading Iraq...and Iran became all the more powerful because of it.