MyCentre leader Samir Mohtadi, who also goes by Abu Hamza, refers to Islamic texts on the virtues of staying silentGet our breaking news email, free app or daily news podcastA leader of a Melbourne Islamic centre allegedly linked to the accused Flydubai hijacker has released a video extolling the virtues of staying silent, without directly commenting on the accusations from prosecutors in the United Arab Emirates.Dr Hamad Saif al-Shamsi, the attorney general of the UAE, on the weekend said that