WASHINGTON — There have been no credible or specific threats against the United States yet ahead of the 10th anniversary of the Sept. 11 attacks, U.S. Homeland Security Secretary Janet Napolitano said Wednesday.
U.S. officials have been on high alert for possible plots to reprise in some form of the Sept. 11, 2001 attacks in which al-Qaida operatives hijacked commercial airliners and crashed them into the World Trade Center and the Pentagon.
"We have no specific or credible threats involving the 9/11 anniversary to date," she told reporters during a news conference on an unrelated subject.
Counterterrorism officials have also been worried about retaliatory attacks after U.S. forces killed al-Qaida leader Osama bin Laden during a raid on his compound in Abbottabad, Pakistan in May.
One DHS and FBI bulletin issued to law enforcement agencies after that raid warned that, as of February 2010, bin Laden and al-Qaida were discussing the possibility of derailing trains in the United States on the Sept. 11 anniversary this year.
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