HealthExclusive: First visit to Russia's secret nuclear disaster site Deep in the cold war, Russia managed to hide another Chernobyl – a catastrophic explosion that affected thousands. Fred Pearce visits the Mayak evacuation zone Features
HumansFreeze on gun research thaws a little as California opens center California has voted to set up a firearm violence research center. It may be the first to receive public money since a law change pushed through by the gun lobby 20 years ago News