FBI on heightened alert for Sept. 11 anniversary

The Federal Bureau of Investigation will be on heightened alert around Sept. 11 because of the possibility of attacks timed to coincide with the 10th anniversary of the September 11, 2001, terror attacks.
While the bureau said that there is no information on a particular terrorist plot, evidence that the terrorists are intent on launching a U.S. attack came with the arrest of Khalid Ali-M Aldwsari, a 20-year-old college student from Saudi Arabia who allegedly planned to blow up the Dallas home of former President George W. Bush, Newsmax reports. Aldwsari was charged with attempted use of weapons of mass destruction.
“In the past, al-Qaida has not been fixated on anniversaries,” an FBI official said, according to Newsmax. “But from the material seized from Osama bin Laden’s compound, we see references to the 10th anniversary indicating it had significance to him. (As a result) every office will be on heightened alert."
The potential of a terrorist attack with weapons of mass destruction worries FBI Director Robert S. Mueller III.
“The possibility of a nuclear attack is relatively remote, but you can never dismiss it, because of the devastation that would occur,” Mueller said, according to Newsmax. “A radiological attack is not so remote, because it’s relatively easy to get radiological materials and have some sort of radiological improvised explosive device. Although the damage would be far less than from a nuclear detonation, the threat is still there today.”
According to Dr. Vahid Majidi, the chief of the FBI's Weapons of Mass Destruction Directorate, the probability that the U.S. will be hit with a WMD attack at some point is 100 percent. Mueller suggests the attack would most likely employ chemical, biological, or radiological weapons rather than a nuclear device.
To prevent terrorists from acting on these attacks, the FBI has devised a trip wire system, such as having chemical supply companies develop profiles pinpointing large or suspicious purchases of chemicals that could be used to make explosives, that could tip off the bureau to terrorist activity
“We set these trip wires, and when people come across them, we have abilities to report that, wait a minute, someone is buying dual-use technology or the precursors to make nerve gas or industrial strength peroxide,” Art Cummings, the FBI's former head of counterterrorism and counterintelligence said, according to Newsmax. “Someone does that, boom! We have an alert, either a HUMINT [intelligence from a human] alert from an individual or a technical alert.”
Trip wires led to the arrest of Aldawsari and stopped the possible attack on former President Bush's home and other sites.
“The biggest threat comes from individuals who have had some association with the United States, understand the United States, can move either individually or with others relatively freely into the United States and within the United States," Mueller said, according to Newsmax.