
Deep in the frozen ground of the north, a radioactive hazard has lain trapped for millennia. But UK scientist Paul Glover realized some years back that it wouldn’t always be that way: One day it might get out.

Deep in the frozen ground of the north, a radioactive hazard has lain trapped for millennia. But UK scientist Paul Glover realized some years back that it wouldn’t always be that way: One day it might get out.