Olympics could be chance to stop 'cycle' of Rio violence: expert With the crime rate in Rio de Janeiro growing this year, and deadly terror attacks being carried out around the world, security has been a main concern leading up to the Summer Olympics. Nevertheless anthropology professor Alba Zaluar, who specialized in violence, says Rio will be "much more secure" during the Games, and that they could even be an opportunity to break the "vicious cycle" of violence. IMAGES AND SOUNDBITES of security in Rio and interview with Zaluar