A Turkish riot policeman uses tear gas as people protest against the destruction of trees in a park brought about by a pedestrian project, in Taksim Square in central Istanbul May 28, 2013. REUTERS/Osman Orsal (TURKEY - Tags: POLITICS CIVIL UNREST ENVIRONMENT TPX IMAGES OF THE DAY) 

A Turkish riot policeman (background C) uses tear gas as people protest against the destruction of trees in a park brought about by a pedestrian project, in Taksim Square in central Istanbul May 28, 2013.In her red cotton summer dress, necklace and white bag slung over her shoulder she might have been floating across the lawn at a garden party; but before her crouches a masked policeman firing teargas spray that sends her long hair billowing upwards. Endlessly shared on social media and replicated as a cartoon on posters and stickers, the image of the woman in red has become the leitmotif for female protesters during days of violent anti-government demonstrations in Istanbul. Picture taken May 28. REUTERS/Osman Orsal (TURKEY - Tags: CIVIL UNREST)

A Turkish riot policeman uses tear gas against a woman as people protest against the destruction of trees in a park brought about by a pedestrian project, in Taksim Square in central Istanbul May 28, 2013.In her red cotton summer dress, necklace and white bag slung over her shoulder she might have been floating across the lawn at a garden party; but before her crouches a masked policeman firing teargas spray that sends her long hair billowing upwards. Endlessly shared on social media and replicated as a cartoon on posters and stickers, the image of the woman in red has become the leitmotif for female protesters during days of violent anti-government demonstrations in Istanbul. Picture taken May 28. REUTERS/Osman Orsal (TURKEY - Tags: CIVIL UNREST)

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A Turkish riot policeman uses tear gas against a woman as people protest against the destruction of trees in a park brought about by a pedestrian project, in Taksim Square in central Istanbul May 28, 2013.In her red cotton summer dress, necklace and white bag slung over her shoulder she might have been floating across the lawn at a garden party; but before her crouches a masked policeman firing teargas spray that sends her long hair billowing upwards. Endlessly shared on social media and replicated as a cartoon on posters and stickers, the image of the woman in red has become the leitmotif for female protesters during days of violent anti-government demonstrations in Istanbul. Picture taken May 28. REUTERS/Osman Orsal (TURKEY - Tags: CIVIL UNREST)

A Turkish riot policeman prepares to use tear gas against a woman as people protest against the destruction of trees in a park brought about by a pedestrian project, in Taksim Square in central Istanbul May 28, 2013.In her red cotton summer dress, necklace and white bag slung over her shoulder she might have been floating across the lawn at a garden party; but before her crouches a masked policeman firing teargas spray that sends her long hair billowing upwards. Endlessly shared on social media and replicated as a cartoon on posters and stickers, the image of the woman in red has become the leitmotif for female protesters during days of violent anti-government demonstrations in Istanbul. Picture taken May 28. REUTERS/Osman Orsal (TURKEY - Tags: CIVIL UNREST)