A Belarussian guard opens gate at a check-point 'Maidan' of the state radiation ecology reserve in the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. A sign reads 'Attention! Radiation danger. No entrance'. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
An aerial view of the abandoned village Krasnoselje in the state radiation ecology reserve in the 30 km exclusion zone around the Chernobyl nuclear reactor, some 390 km from Minsk, Belarus, 23 March 2011. The inhabitants of the village were evacuated five days after the blast at the Chernobyl nuclear plant on 26 April 1986. Belorussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Andrey Leonenko (L), a radiation supervisor, updates information about radiation levels at the entrance of the state radiation ecology reserve in Babchin, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Ivan Shamyanok walks in the yard of his home in the almost abandoned village of Tulgovichi, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. The village of Tulgovichi had about 1,000 inhabitants before and only few pensioners have stubbornly resisted to move after the nuclear accident and stayed here to live in the polluted village. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
A sign reads 'Radiation danger. No entrance' in the state radiation ecology reserve in Babchin, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Fedor Blinov (L), an engineer-radar operator of the state radiation ecology reserve, measures the inner accumulation of radiation of a worker (R) in Babchin, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Belarussian inhabitants of the almost abandoned village of Tulgovichi stay in queue to buy food from a traveling shop near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. The village of Tulgovichi had about 1,000 inhabitants before and only few pensioners have stubbornly resisted to move after the nuclear accident and stayed here to live in the polluted village. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Andrey Leonenko, a radiation supervisor, measures gamma background at the entrance of the state radiation ecology reserve in Babchin, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH
Ekaterina Kozel pushes a trolley with food to her house in the almost abandoned village of Tulgovichi, near the 30 km exclusion zone around the Chernobyl nuclear reactor, some 370 km from Minsk, Belarus, 22 March 2011. The village of Tulgovichi had about 1,000 inhabitants before and only few pensioners have stubbornly resisted to move after the nuclear accident and stayed here to live in the polluted village. Belarussians will mark the 25th anniversary of the world's yet worst nuclear power accident on 26 April 2011. EPA/TATYANA ZENKOVICH