Article describes the Runit Dome on Runit island in the Enewetak Atoll in the Marshall Islands which is a cement dome that covers some 110,000 cubic yards of radioactive waste (mostly plutonium) generated by 12 years of nuclear weapons testing by the U.S.  The article describes how the dome is at sea level, and addresses concerns related to leakage of radioactive contamination, the manner in which the compact of free association between the Marshall Islands and the U.S. seemingly foreclosed claims by the Marshalese to responsibility for cleanup, notes how the Marshall Islands government lacks the fund and resources necessary for comprehensive cleanup, and how the Marshalese are pushing the U.S. government to take responsibility for cleanup procedures.

July 3, 2015 – The Guardian

http://www.theguardian.com/world/2015/jul/03/runit-dome-pacific-radioactive-waste?CMP=ema_565