Attacks on the two World Trade Center towers and the Pentagon with four hijacked planes: approximately 50,000 employees in the two towers, plus visitors; 2,749 people died from 430 companies in 28 countries; 343 firefighters were killed; 157 people were aboard the two planes in the WTC, 64 in the Pentagon, and 44 in Pennsylvania. The energy released by the explosions at the World Trade Center and the resulting 60-minute fire was equivalent to 1,000 tons or 200 conventionally charged Cruise ships. Nothing will ever be the same again.
