Expert warns sleeper cells could be activated in US over Trump's war: ‘The threat is real'

A terrorism analyst on Monday explained how the United States-Israel war against Iran might have activated sleeper cells and has concerned law enforcement.

Alex Plitsas, counterterrorism program director for the Atlantic Council, told CNN anchor Jake Tapper that recent attacks had suggested increased activity among terrorist sleeper cells. Plitsas cited the attempted attack Saturday by two men charged with using weapons of mass destruction and supporting the Islamic State after throwing...