Are Interfaith Dialogues Being Exploited to Promote Islamist Bigotry in the West?

Interfaith dialogue seems like such a noble cause. In this age of religious-inspired terror, what could be better than bringing preachers of different faiths together in search of a common good? However, it seems that interfaith dialogue is increasingly being exploited by extremists, who have learned to praise other faiths in public, but curse them behind closed doors.