This political scientist has a new book coming out in which he classifies all suicide attacks worldwide. He will dispel some myths on the subject: "The leading instigator of suicide attacks is the Tamil Tigers in Sri Lanka, a Marxist-Leninist group whose members are from Hindu families but who are adamantly opposed to religion. This group committed 76 of the 315 incidents, more than Hamas (54) or Islamic Jihad (27). Even among Muslims, secular groups like the Kurdistan Workers' Party, the Popular Front for the Liberation of Palestine and the Al Aksa Martyr Brigades account for more than a third of suicide attacks."