By Felicity Clarke, Senior Contributing Reporter
RIO DE JANEIRO - A cold light illuminates the Tehran skyline on the night of June 24, 2009. The tense, shadowy stillness of the rooftops is broken by a woman shouting out. The call is a protest against irregularities in Iran's disputed presidential election, and the utterly compelling image is the World Press Photo of Year 2009.
The photograph is part of a series by Italian photographer Pietro Masturzo capturing individual rooftop protests following the controversial elections that led to violent demonstrations and political unrest in Iran. Along with other prizewinning photojournalism from around . . .