There have been 62 incidents considered to be acts of terrorism carried out or attempted on U.S. soil by Americans or illegal immigrants in the U.S. since September 11, 2001. Some 28 involved Muslims or Muslim sympathizers:
9/18/01: Letters tainted with anthrax kill five across the U.S. Politicians and media officials are the apparent targets. The FBI concludes that Bruce E. Ivins, an apolitical biodefense researcher who committed suicide in August 2008, was solely responsible.
12/12/01: Two Jewish Defense League members are foiled in a plot to blow up a California mosque and the office of a Lebanese-born congressman.
2/2/02: Two members of the radical white group Project 7 are arrested plotting to kill judges and law enforcement officials in order to kick off a revolution.
5/02: Lucas John Helder rigs pipe bombs in private mailboxes to explode when the boxes were opened, injuring six people in five states. His motivation was to get media attention so that he could spread a message denouncing government control over people's lives, the illegality of marijuana, and to promote astral projection.
7/4/02: July 4: Hesham Mohamed Hadayer, an Egyptian national, kills two Israelis and wounds four others at the El Al ticket counter at Los Angeles International Airport. The FBI concludes that the act was terrorism, although they did not find evidence linking Hadayet to a terrorist group.
10/02: John Allen Muhammad and Lee Boyd Malvo kill 10 people and critically injured 3 others in Washington D.C, Baltimore, and Virginia. No motivation is given at trial, but evidence shows support for the cause of the Islamic jihad.
9/3/02: A plot by an Idaho militia group to kill a judge and a police officer and break a friend out of jail is foiled.
4/24/03: William Krar is charged for his part in a white supremacist related-poison gas plot.
5/1/04: Iyman Faris pleads guilty to providing material support to Al Qqaeda and plotting to bring down the Brooklyn Bridge.
2004: A loosely organized group of young men from a Muslim neighborhood in Columbus, Ohio, including an illegal alien from Somalia thought to be part of a clandestine Al Qaeda cell, are foiled in their plan to blow up a shopping mall.
8/31/05: Four Los Angeles men, one of them a Muslim convert, are charged with planning to wage war against the federal government and Jewish institutions throughout California
2/21/06: Three Toledo, Ohio men are accused of conspiring to wage a "holy war" against the U.S. and supply terrorists in Iraq.
3/5/06: Mohammed Reza Taheri-azar injures six people when he drives an SUV into a pedestrians im Chapel Hill, N.C., to "avenge the deaths or murders of Muslims around the world."
6/23/06: Seven men are arrested in Miami on charges they planned to bomb the Sears Tower in Chicago FBI agent posing as an Al Qaeda member infiltrates the group.
6/06: The Animal Liberation Front unsuccessfully tries to detonate a firebomb on the doorstep of a house thought to be occupied by a UCLA professor doing research on animals.
7/28/06: Naveed Afzal Haq, an American citizen of Pakistani descent, kills one woman and shoots five others at the Jewish Federation building in Seattle. He tells a 911 dispatcher that he is angry with American foreign policy in the Middle East.
9/11/06: A man rams his car into a Davenport, Iowa women's clinic that he thought was an abortion clinic and set sit ablaze.
11/29/06: White supremacist Demetrius Van Crocker is sentenced to 30 years in prison for attempting to acquire nerve gas and explosives that he planned to use to destroy government buildings.
12/8/06: Derrick Shareef, a Muslim convert who talked about his desire to wage jihad against civilians is charged in a foiled plot to set off four hand grenades in garbage cans at a Rockford, Illinois mall.
4/25/07: A bomb is left in at an Austin, Tex., women's clinic but fails to explode.
5/1/07: Five members of a self styled Alabama anti-immigration militia are arrested for planning a machine gun attack on Mexicans.
5/7/07: Six men inspired by Jihadist videos are arrested in a failed plot to kill soldiers at Ft. Dix, N.J.
10/26/07: A pair of improvised explosive devices are thrown at the Mexican Consulate in New York City. The fake grenades were filled with black powder, and detonated by fuses, causing very minor damage. No clear motive is found.
2/08: Animal-rights extremists assault family members of animal researchers in Santa Cruz, Calif.
3/3/08: Four multimillion-dollar show homes place in Woodinville, Wash., are torched. The Earth Liberation Front is suspected.
3/6/08: A homemade bomb damaged a Recruiting Office in Times Square. No suspects are arrested or motive found.
3/26/08: Michael S. Gorbey is charged with planning to set off a crude bomb at the U.S. Capitol in an anti-government plot.
5/4/08: Multiple nail-filled pipe bombs explode at a federal courthouse in San Diego, causing considerable damage. No suspects are arrested or motive found.
7/27/08: Jim D. Adkisson opens fire at a Unitarian Universalist Church in Knoxville, Tenn., killing two and injuring seven before killing himself. The church was apparently targeted because of its support of liberal social policies.
8/2/08: Unidentified animal rights groups firebomb the home and car of a University of California-Santa Cruz molecular biologist.
10/27/08: Federal agents thwart a plot by two white power skinheads to target an African American High School and assassinate presidential candidate Barack Obama.
5/20/09: Four black Muslim men are arrested in connection with a plot to shoot down aircraft flying out of an Air National Guard base in upstate New York and two synagogues in the Bronx.
5/25/09: A crude bomb explodes in a Starbucks in Manhattan's Upper East Side. Kyle Shaw, 17, is arrested and convicted. Police say his motive was to emulate "Project Mayhem," a series of assaults on corporate America portrayed in the movie Fight Club.
5/31/09: George Tiller, a doctor who provided late-term abortions, is shot to death in a Wichita, Kans. church. Scott Roeder, who says he believes in killing abortion providers, is arrested for the killing.
6/1/09: One military recruiter is killed and another critically injured by Abdulhakim Mujahid Muhammad, who claims he is a member of Al Qaeda and is upset over U.S. killing of Muslims in Iraq and Afghanistan.
6/10/09: Self-described white supremacist and neo-Nazi James Wenneker von Brunn fatally shoots a guard at the U.S. Holocaust Memorial Museum in Washington, D.C.
9/09: Najibullah Zazi, a Denver man who says he was recruited by Al Qaeda, is indicted with two other men on charges of trying to build and detonate a weapon of mass destruction in the New York City subway system.
9/24/09: Michael Finton (aka Talib Islam) of Illinois is charged with trying to kill federal employees by detonating a car bomb at the federal building in Springfield, Ill.
11/5/09: Army psychiatrist Nidal Malik Hasan, a Muslim, opens fire and kills 13 people at the Ft. Hood in Texas in what is described as an act of "violent Islamic terrorism."
2/18/10: Joseph Stack flies a small plane into an IRS building in Austin, Tex., in an attack believed to be in retaliation to the federal government.
5/1/2010: A car bomb placed byFaisal Shahzad, an American of Pakistani origin with Al Qaeda ties, is found in Times Square in New York City before it can detonate.
9/1/10: James J. Lee wearing, explosives and carrying a gun, takes hostages at the Discovery Channel headquarters in Silver Spring, Md., before being killed by police. He was protesting the channel's "anti environmental" message and programming encouraging birth of humans who he called filthy.
9/24/09: Hosam Maher Husein Smadi, an illegal immigrant from Jordan, is charged with trying the bomb a Dallas office tower after based on an FBI sting operation in which FBI agents posed as members of an Al Qaeda sleeper cell.
10/21/09: Tarek Mehanna, a pharmacist from suburban Boston, is arrested on charges of conspiracy to provide material support to terrorists.
1/7/10: Adis Medunjanin attempts attempts an Al Qaeda-inspired suicide attack by intentionally crashing his car on the Whitestone Bridge in New York City.
3/28/10: Nine members of the Hutaree Christian militia are indicted in an alleged plot to kill a law enforcement official and then bomb his funeral caravan in conjunction with trying to seize several rural Michigan counties.
5/10: Paul Rockwood Jr., an Alaska meteorologist, pleads guilty to compiling a list of 20 military and news media targets for what he viewed their desecration of Islam.
10/20/10: Sami Samir Hassoun, a Lebanese citizen living in Chicago, is charged with attempted use of a weapon of mass destruction and attempted use of an explosive device after placing a backpack with what he thought was a bomb near Wrigley Field.
10/27/10: Farooque Ahmed, a naturalized U.S. Citizen. is indicted for conspiracy to bomb Washington Metro stations with people he thought were Al Qaeda members.
11/26/10: Mohamed Osman Mohamud a 19-year-old Somali-American jihadist, is arrested after attempting to car bomb a Christmas tree lighting ceremony in Portland, Ore.
12/8/10: Antonio Martinez (aka Muhammad Hussain), a convert to Islam, is arrested after a sting operation in an alleged plot to bomb a military recruiting center in Catonsville, Md.
12/21/10: Internet radio broadcaster Hal Turner is sentenced to 33 months in prison after he publishes the work addresses and photographs of three judges who had upheld gun control laws and advocated for their assassination.
1/6/11: Three packages detonate in the mail rooms of two Maryland state government buildings. No suspects are arrested or motive found.
1/17/11: A small pipe bomb in a backpack designed to be detonated by remote control and spread shrapnel is discovered during a Martin Luther King Day parade in Spokane, Washington. A man with ties to white supremacist groups is arrested.
2/24/11: Khalid Ali-M Aldawsari, a Saudi Arabian student, is arrested for building bombs to use in alleged terrorist attacks against the home of former President George W. Bush and the homes of soldiers formerly stationed at the Abu Ghraib Prison in Iraq, among other targets.