Did the U.S. government ignore warnings of planes used as missiles?

Wars & Conflicts · Published 16 October 2026 Swipe more like this →

In short: Official accounts claim 9/11 was unimaginable, yet records show agencies were running drills for exactly that scenario. From foiled plots in the mid-90s to specific military exercises, a complex web of intelligence and preparation suggests the threat was known—even if the response was anything but perfect.

The official narrative from high-ranking officials in 2001 emphasized that flying airplanes into buildings was an unprecedented tactic. However, historical records suggest otherwise. The FBI had indications of hijacking plans as early as 1995 following the foiled Bojinka plot, which involved a plan to blow up eleven airliners. Additionally, the Intelligence Community received at least twelve reports over seven years suggesting terrorists might use planes as weapons. While these were disseminated to agencies like the FAA, they reportedly failed to produce formal assessments of the likelihood of such an attack for policymakers.

Simultaneously, the military was actively preparing for these specific contingencies. In the two years preceding 9/11, NORAD conducted exercises simulating hijacked airliners used as weapons to crash into targets, including the World Trade Center. Other drills included mock shootdowns over the Atlantic and simulations of aircraft crashing into buildings. Even on the morning of September 11, the National Reconnaissance Office scheduled an exercise simulating a plane crash into its own building just four miles from Washington Dulles International Airport.

The debate often centers on whether these warnings were specific enough to mandate intervention. While some argue that domestic intelligence about al-Qaeda was thorough enough to have triggered action, others point to the fact that many of these reports were never acted upon or distributed to local police. Furthermore, investigations into 'insider trading' revealed unusual put option activity in airlines just days before the attacks; however, the 9/11 Commission concluded these trades had innocuous explanations, such as a specific options newsletter recommendation, rather than advance knowledge.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• The first 9/11 demolition claim appeared online within six hours
• The communication gaps that delayed the U.S. military response on September 11
• Could rogue planes have mimicked real flight paths to execute a complex 9/11 plan?
• The chaotic, high-stakes days that followed the September 11 attacks in the United States
• The pilot who was ordered to ram a hijacked airliner
• The 9K33 Osa was the first mobile air defense system to carry its own radar.
• The strict rules that govern America's most vital charitable organizations
• The 9M133 Kornet: A Russian Anti-Tank Missile That Reshaped Modern Armored Warfare
• Is Russia's Zircon missile a hypersonic marvel or a traditional rocket in disguise?
• The actor who balanced a banking career with the stage
• Was the 1965 Indonesian coup a communist uprising or an internal military purge?
• From Bradford to Broadway: The Versatile Career of Actor and Satirist Aasif Mandvi

More in Wars since 1945 · More in Wars & Conflicts · Latest · A–Z · All topics