Wikipedia indicates that The "Hologram Theory," as it relates to 9/11, proposes that no commercial airliners hit the World Trade Center on Sept 11 2001. Proponents of the theory contend that rather than full sized airliners, the World Trade Center was hit by "Cruise" type Missiles which appeared to the naked eye to be airliners through the use of sophisticated hologram technology. Rosalee Grable is one the the theory's leading proponents.

One eyewitness described the 'airplane' he saw: "It just disappeared. It disappeared like a, like a, bad special effect. Disappeared right into the building." Eyewitness Accounts. This theory is controversial even among 9/11 researchers.