Officials say more than 100 jihadists are fighting abroad for terror groups , including Islam . Opinion : Why Americans leave for jihad . One of the young male jihadists are linked to a mosque in the western city of Calgary , Alberta . One recent convert left to Calgary soon after beginning worshipping there . Friends and jihadists leaders are concerned .
Officials say more than 100 jihadists are fighting abroad for terror groups , including Islam . One of the young male jihadists are linked to a mosque in the western city of Calgary , Alberta . One recent convert left to Calgary soon after beginning worshipping there . Friends and jihadists leaders are concerned .