HijackersGas

From 911Encyclopedia:

During the anniversary of Sep11th, the FBI changed the story of the original Sep11th-hijack. In the update, the official hijackers used gas to subdue the passengers and crew. In this case, however, the cell phone story and many other details would make no sense anymore. Source: http://story.news.yahoo.com/news?tmpl=story&u=/nm/20021210/ts_nm/attack_germany_trial_dc_2