A sign signals the boundary of the Nevada Test Site (now called the Nevada National Security Site) near Amagosa Valley Thursday, Aug. 27, 2015.
Tuesday, Feb. 13, 2018 | 1:12 p.m.
At a vast tract of uninhabited desert in southern Nevada, hundreds of moonlike craters dimple the wasteland, remnants of Cold War nuclear explosions that melted the bedrock and fused the sand to ensure that America could take part in the unthinkable: global thermonuclear war.
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