Ms. Abizaid said groups such as al Qaeda, which carried out the Sept. 11, 2001, terrorist attacks in the U.S., have less operational capacity now but are seeking to use the Hamas attack on Israel as a chance to rebuild and recruit.
FBI says terrorism threat hits 'a whole other level' after Hamas attack
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Yet she said officials at the counterterrorism office do not see “intentions” by the major terrorist networks to exploit it.
Top counterterrorism official: Terror groups not using southern border to enter U.S.
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