Indonesia's Islamic Defenders Front is a self-proclaimed moral police, a 15-million person strong “pressure group” sworn to rid the world's largest Muslim population of sin.Led by hooded men shouting Arabic battle cries, they target nightclubs, churches, liberal Muslims and embassies of countries considered hostile to Islam. GlobalPost's Patrick Winn just completed an investigation of the Islamic Defenders Front. On Thursday Dec. 16 at noon Eastern time, Patrick participated in one of GlobalPost's Web Chats.