Suicide attack
The September 11, 2001 attacks, orchestrated by al-Qaeda, has been called "the worst attack on American soil since the Japanese attack on Pearl Harbor which thrust the United States into World War II". They involved the hijacking of four large passenger jet airliners because their long transcontinental flight plans meant they carried more fuel, allowing a bigger explosion on impact (unlike earlier airline hijackings, the primary focus was the planes, not the passengers). Two planes were deliberately flown into the Twin Towers of the World Trade Center in New York City, destroying both 110 story skyscrapers within less than two hours, and a third was flown into the Pentagon in Arlington County, Virginia, causing severe damage to the west side of the building. These attacks resulted in the deaths of 221 people (including the 15 hijackers) on board the three planes as well as 2,731 more in and around the targeted buildings. A fourth plane crashed into a field near Shanksville, Pennsylvania, after a revolt by the plane's passengers, killing all 44 people (including the four hijackers) on board. In total, the attacks killed 2,996 people and injured more than 6,000 others. The U.S. stock market closed for four trading days after the attacks (the first time it had an unscheduled closing since the Great Depression). Nine days after the attack, U.S. President George W. Bush called for a "War on Terror" and shortly thereafter launched the War in Afghanistan to find and capture Osama bin Laden, the head of the al-Qaeda organization that mounted the 9/11 attacks.
After the U.S.-led invasion of Iraq in 2003, Iraqi and foreign insurgents carried out waves of suicide bombings. More attacks have been carried out in Iraq (1938 as of mid-2015) than in any other country.
The Third Terrorist
Representative Dana Rohrabacher (R - CA) cited this research in the report "The Oklahoma City Bombing: Was There A Foreign Connection?" Within the report the following statements citing several pieces of real and circumstantial evidence were made, supporting the main theory laid out by Jayna Davis in her book. "...of all the cities in the world, convicted terrorist Ramzi Yousef and
Terry Nichols were in Cebu City in the Philippines at the same time three months before the Oklahoma City bombing. Yousef was the perpetrator of the first World Trade Center attack as well as the mastermind behind the planning of other high-profile attacks on Americans. Furthermore, Ramzi Yousef's phone records, from the months before he detonated the first World Trade Center bomb in early 1993, show calls placed to the Filipina neighbor and close friend of Terry Nichols' in-laws in Queens, New York. The opportunity for interaction between American terrorist, Nichols, and al-Qaeda terrorist, Yousef, is evident."