Helmets of construction workers are readied near the destroyed reactor of the Chernobyl nuclear power plant in Chernobyl, Ukraine, Thursday, April 26, 2012. Ukraine's president on Thursday thanked the... more 
Helmets of construction workers are readied near the destroyed reactor of the Chernobyl nuclear power plant in Chernobyl, Ukraine, Thursday, April 26, 2012. Ukraine's president on Thursday thanked the international community for financing the construction of a new, safer shelter over the damaged Chernobyl reactor and urged extreme caution with nuclear energy as Ukrainians, Belarusians and Russians marked the 26th anniversary of the world's worst nuclear disaster. (AP Photo/ Efrem Lukatsky) less 
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Associated Press | Photo By Efrem Lukatsky
Thu, Apr 26, 2012 3:25 PM EDT