State Terrorism

I am listening to Noam Chomsky on Google Videos and he just pointed out three well known terrorist incidents of the year 1985, one of which was a covert bombing of a mosque in Beirut by the CIA as approved by William Casey--80 civilians were killed and over 200 mostly women and girls were wounded. The target, a sheikh believed responsible for the Beirut Barracks bombing that killed more than 200 U.S. Marines escaped harm. This was documented by Bob Woodward in his book about William Casey and the CIA: Veil. Here is an interview of Woodward on PBS's Frontline where he also mentions this act of state sponsored terrorism. Which state? The U.S.A.