The ideology which they follow inspire them to kill and live in ghettos shielded away from civilisation- I have read and also watched all the videos of Zakir Naik on youtube and my God he is a nut-his arguements are hollow,circumlocutory and his talk is gibberish. He openly advocates that apostates of Islam should be killed,non muslims should be denied even basic human rights,seggregation of sexes and prohibits Muslims marrying people from any other religion-If this guy is an Islamic scholar then moral and intellectual bankruptcy of Islam is complete-Even my 6 year old daughter can present more cogent arguements then Zakir. If any one doubts what I have written or hide under the famous shield that I have misquoted then I can send you all the links on youtube