Original: Airplane hijackings result in the collapse of the World Trade Center in New York City , destruction of the western portion of The Pentagon in Arlington , Virginia , and a passenger airliner crash in Shanksville , Pennsylvania .
Simplified: Salvador Allende Events 2001 - The September 11 attacks destroy the World Trade Center in New York City and part of The Pentagon in Washington , D.C. , and down a passenger airliner in Pennsylvania .