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... 1973, Chilean President Salvador Allende died in a coup d'état led by his military chief, Gen. Augusto Pinochet. Allende, as the BBC reported, was "the world's first democratically-elected Marxist head of state" -- a status that made him a target for the U.S. Central Intelligence Agency, said to have "backed" the military "uprising."
... 2001, hijackers used U.S. civilian airliners as tools of terrorism. The World Trade Center in New York and the Pentagon in Washington each were hit, killing thousands; a 3d jet crashed in a field in Pennsylvania. The September 11 attacks touched off a campaign that U.S. officials dubbed GWOT, the global war on terror. The attacks were attributed to the Al Qaeda network, whose leader, Osama bin Laden, remains at large to this day.