Russia, US renew nuclear talks

Russia and the US are to reopen negotiations about reducing their nuclear warheads, presidents Dmitry Medvedev and Barack Obama have said.
The discussions will be the first such talks for more than a decade.
Mr Obama said earlier there were very real differences between Washington and Moscow, but that there was also a broad set of common interests.
The announcement came on the fringes of the G20 summit of world leaders which is convening in London.
Mr Medvedev has invited his American counterpart to visit Moscow in July - an invitation Mr Obama has accepted.
Russia and the US have also agreed to discuss "mutual international co-operation", the two presidents said.
After their meeting, Mr Medvedev said he viewed prospects for future bilateral relations "with optimism".
In a joint statement, the two leaders said they had ordered nuclear negotiators to report first results in July.
Mr Obama said the US and Russia would be in a much stronger position to strengthen the non-proliferation treaty if they were to lead by example and reduce their own nuclear arsenals.