The following is a list of plots, casings, and infiltrations thwarted by the U.S. government in recent years.
The West Coast Airliner plot: In mid-2002, the United States disrupted a plot to attack targets on the West Coast of the United States using hijacked airplanes. The plotters included at least one major operational planner involved in planning the events of Sept. 11.
The East Coast Airliner plot: In mid-2003 the United States and a partner disrupted a plot to attack targets on the East Coast of the United States using hijacked commercial airplanes.
The Jose Padilla plot: In May 2002 the United States disrupted a plot that involved blowing up apartment buildings in the United States. One of the plotters, Jose Padilla, also discussed the possibility of using a "dirty bomb" in the U.S.
The 2004 UK Urban Targets plot: In mid-2004 the United States and partners disrupted a plot that involved urban targets in the United Kingdom. These plots involved using explosives against a variety of sites.
The 2003 Karachi plot: In the spring of 2003 the United States and a partner disrupted a plot to attack Westerners at several targets in Karachi and Pakistan.
The Heathrow Airport plot: In 2003 the United States and several partners disrupted a plot to attack Heathrow Airport using hijacked commercial airliners. The planning for this attack was undertaken by a major 9/11 operational figure.
The 2004 UK plot: In the Spring of 2004 the United States and partners, using a combination of law enforcement and intelligence resources, disrupted a plot to conduct large-scale bombings in the United Kingdom.
The 2002 Arabian Gulf Shipping plot: In late 2002 and 2003 the United States and a partner nation disrupted a plot by Al Qaeda operatives to attack ships in the Arabian Gulf.
The 2002 Straits of Hormuz plot: In 2002 the U.S. and partners disrupted a plot to attack ships transiting the Straits of Hormuz.
The 2003 Tourist Site plot: In 2003 the United States and a partner nation disrupted a plot to attack a tourist site outside the United States.
5 casings and infiltrations
The U.S. government and tourist sites tasking: In 2003 and 2004, an individual was tasked by Al Qaeda to case important U.S. Government and tourist targets within the United States.
The gas station tasking: In approximately 2003, an individual was tasked to collect targeting information on U.S. gas stations and their support mechanisms on behalf of a senior Al Qaeda planner.
Iyman Faris and the Brooklyn Bridge: In 2003, and in conjunction with a partner nation, the U.S. government arrested and prosecuted Iyman Faris, who was exploring the destruction of the Brooklyn Bridge in New York. Faris ultimately pleaded guilty to providing material support to Al Qaeda and is now in a federal correctional institution.
2001 Tasking: In 2001, Al Qaeda sent an individual to facilitate post-September 11 attacks in the U.S. U.S. law enforcement authorities arrested the individual.
2003 Tasking: In 2003, an individual was tasked by an Al Qaeda leader to conduct reconnaissance on populated areas in the U.S.
This list came from the U.S. White House.