Naturally, they're trying it again.
A leaking reactor on the Greenland ice sheet
The PM-2A was built in 18 months. It arrived at Thule Air Force Base in Greenland in July 1960 and was dragged 138 miles across the ice sheet in pieces and thenWhen the reactor went critical for the first time in October, the engineers turned it off immediately because the PM-2A leaked neutrons, which can harm people. The Army fashioned lead shields and built walls of 55-gallon drums filled with ice and sawdust trying to protect the operators from radiation.
The PM-2A ran for two years, making fossil fuel-free power and heat and far more neutrons than was safe.
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