Bosnian Croat Zarko Hrgic, 51, sits at the entrance of a cave where he lives, in the village of Babino January 31, 2010. Hrgic has been living in the cave for three years in Babino near the central Bosnian town of Zenica, 50 miles northeast of Sarajevo
, where the temperature in the village dips to minus 17 degrees Celsius at night. He makes a living by selling wood for 15 euros ($20.80) per metre. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY ENVIRONMENT)

Bosnian Croat Zarko Hrgic, 51, stands at the entrance of a cave where he lives, in the village of Babino January 31, 2010. Hrgic has been living in the cave for three years in Babino near the central Bosnian town of Zenica, 50 miles northeast of Sarajevo
, where the temperature in the village dips to minus 17 degrees Celsius at night. He makes a living by selling wood for 15 euros ($20.80) per metre. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY ENVIRONMENT)

Bosnian Croat Zarko Hrgic, 51, carries wood from forest in the village of Babino January 31, 2010. Hrgic has been living in a cave for three years in Babino near the central Bosnian town of Zenica, 50 miles northeast of Sarajevo
, where the temperature in the village dips to minus 17 degrees Celsius at night. He makes a living by selling wood for 15 euros ($20.80) per metre. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY ENVIRONMENT)

Bosnia Croat Zarko Hrgic, 51, poses with his dog in front of his cave in the village of Babino January 31, 2010. Hrgic has been living in a cave for three years in Babino near the central Bosnian town of Zenica, 50 miles northeast of Sarajevo
, where the temperature in the village dips to minus 17 degrees Celsius at night. He makes a living by selling wood for 15 euros ($20.80) per metre. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY ENVIRONMENT ANIMALS)

Bosnia Croat Zarko Hrgic, 51, splits wood in a forest in the village of Babino January 31, 2010. Hrgic has been living in a cave for three years in Babino near the central Bosnian town of Zenica, 50 miles northeast of Sarajevo
, where the temperature in the village dips to minus 17 degrees Celsius at night. He makes a living by selling wood for 15 euros ($20.80) per metre. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY ENVIRONMENT)

- PHOTO TAKEN 10JUL05 - A Bosnian Muslim talks on a mobile phone as he pauses near the village of Bakraci from marching towards Srebrenica July 9, 2005. Survivors of the 1995 Srebrenica massacre marched through the fields of Bosnia to re-enact a harrowing escape from Serb forces who slaughtered 8,000 of their Muslim kin. Tens of thousands of family members, foreign dignitaries and guests are expected to attend a ceremony in Srebrenica on July 11 marking the 10th anniversary of the massacre in which Serb forces killed up to 8,000 Muslim men and boys. Nearly 600 identified victims will be buried at a memorial cemetery during the ceremony, their bodies found in some 60 mass graves around the town. More than 1,300 Srebrenica victims are already buried there.