Russia offers US nuclear talks in bid to ease tensions

Russia on Tuesday offered to discuss with the United States allegations from Washington that it had carried out secret underground nuclear tests, in a bid to ease tensions between the world’s top two nuclear superpowers.Russia has tested its nuclear-powered, nuclear-capable weapons systems in recent weeks, but rejects the accusation by US President Donald Trump that it had secretly detonated a nuclear device.Trump caused concern and confusion last month when he said he was ordering the Un