Despite the low numbers of foreign fighters their presence has been confirmed in several ways and Coalition forces believe the majority of suicide bombings are believed to be carried out by non-Iraqi foreigners. Kenneth Katzman, a Middle East expert with the Congressional Research Service, stated in June 2005: "I still think 80 percent of the Insurgents, the day to day activity, is Iraqi – the roadside bombings, mortars, direct weapons fire, rifle fire, automatic weapons fire... the foreign fighters attract the headlines with the suicide bombings, no question."