 Kassir was arrested in Prague, Czech Republic, while on his way to Beirut, on December 11, 2005, on a warrant filed by United States federal prosecutors.He was charged with conspiring to support terrorism by traveling from London to Bly, Oregon, in 1999 to help set up a jihad training camp.Kassir and another man, Haroon Rashid Aswat, were sent to the camp by Abu Hamza al-Masri, a radical London-based cleric.