"A Department of Homeland Security advisory issued [Sept. 4] warns that al Qaeda is working on plans to hijack airliners flying between international points that pass near or over the continental United States...

"The advisory includes a laundry list of possible attack scenarios, and says al Qaeda may be researching how to disseminate diseases and toxins by contaminating water and food, or aerosolizing an agent in an enclosed space...

"The advisory notes that al Qaeda has successfully used suicide bombers and warns that terrorists 'will employ novel methods to artfully conceal suicide devices.'"

—CNN, Sept. 5, 2003.