A Bangladeshi policeman grabs the mouth of activists and prominent photographer Dr. Shahidul Alam so that he doesn't speak to the press during an appearance in a court, in Dhaka, Bangladesh, August 6, 2018. Bangladesh police said on August 6 they arrested a prize-winning photographer for "provocative comments" in an Al Jazeera interview about protests by teenagers that have convulsed the country for over a week.