No more bluffs. He's not taunting them that America's patience is running out. He knows that they know that America cannot get away with any more conflict in the region. In that speech he just gave Assad carte blanche to do whatever he wants. America will hold them accountable only in rhetoric. Scary.
U.S. confirms ISIS computer expert killed in air strike (Reuters)
from the article: Bush: My patience with Syria's Assad 'ran out a long time ago'