Several planes were 1/2 full..........so was WTC 7...on the actual day..again, did some Americans help the terrorists, give people forewarning not to around said location on said day or beware??

 Why were there no fatalities from the collapse of WTC 7?

Several factors contributed to the outcome of no loss of life—or serious injuries—in WTC 7. The building had only half the number of occupants on a typical day—approximately 4,000 persons—at the times the airplanes struck the WTC towers. Occupants had recently participated in fire drills. The occupants, alerted by the attacks on WTC 1, WTC 2 and the Pentagon, began evacuating promptly. Emergency responders provided evacuation assistance to occupants. No emergency responders were harmed in the collapse of WTC 7 because the decision to abandon all efforts to save WTC 7 was made nearly three hours before the building fell.