Science and technology

Associated Press
A sign warning of radioactive contamination dangles from a fence at the 'C' Tank Farm at the Hanford Nuclear Reservation, Wednesday, March 6, 2013, near Richland, Wash. Gov. Jay Inslee toured Hanford Wednesday and met with Dept. of Energy officials in order to learn more about tanks on the site that are leaking radioactive waste. (AP Photo/Ted S. Warren)

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