U.S. President Barack Obama speaks during the National Prayer Breakfast February 5, 2015 in Washington, DC. Obama reportedly spoke about groups like ISIS distorting religion and calling the Islamic terror group a 'death cult.'
Obama seeks congressional approval in war against ISIS
02:05 - Source: CNN
Washington CNN  — 

The number of foreign fighters traveling to join ISIS’s ranks is increasing at an alarming rate, a top U.S. counterterrorism official warned on Wednesday.