So we have a history buff here, ok so far in History you want to go?? Before they were non muslims and were Buddhists and Hindus before that? Bahasa Melayu which your converted muslims speak is originated from Sanskrit as well as Thai language which derived from Pali and Sanskrit. So before muslims invaded and converted those Hindus/Buddists to Muslims, this all was Buddhist/Hindus land. So when a terrorist invade your country , you dont hand it over. They can go across the border and live with their Bumiputra brothers, ironically a sanskrit word for son of the land. The religion of peace only know conversion, kill or terrorize and there is only one way to deal with terrorists.