WASHINGTON, Aug. 18 (UPI) -- A so-called lone-wolf terrorist may be the greatest threat within the United States, officials say.
The FBI and Department of Homeland Security, in a bulletin Tuesday, reminded law enforcement agencies of Anders Behring Breivik, charged with 78 deaths in Norway, CNN reported. Breivik allegedly killed eight people in a bombing in downtown Oslo before gunning down 69 people, many of them children and teenagers, at a political summer camp.