In recent years there has been plenty of often heated debate about the relationship between Islam and extremism. Much of the fiercest commentary has come from outside the faith, but increasingly there are calls for change from within the Muslim community. Hardtalk’s Stephen Sackur speaks to one of the most controversial voices in that internal debate. Raheel Raza is a Pakistani born Canadian human rights activist who co-founded the Muslim Reform Movement. How many Muslims are ready to talk her language?