“Senior U.S. officials are concerned over recent intelligence indicating that the Pakistani Taliban, which orchestrated the failed Times Square bombing, may have successfully placed another operative inside the United States to launch a second attack, sources tell Fox News. Authorities, however, know very little about the potential operative or any possible plot.

“[We] don’t know who it is and don’t know where it is,” one source said. “We know the guy’s here, but don’t know anything about him.” Based on the intelligence, authorities believe the Pakistani Taliban, also known as Tehrik-e Taliban Pakistan, would have directed the individual to attempt another Times Square-style operation, but not necessarily in New York City… ”

http://www.familysecuritymatters.org/publications/id.7653/pub_detail.asp