Dmitry Medvedev visits Silicon Valley for the first time on Wednesday, eager to reinvent his country's outmoded, oil-dependent economy.
Former Secretary of State George Shultz, a Republican, defends Obama’s nuclear strategy and discusses his vision of a world without nukes.
As world leaders convene in Washington for a summit on halting the spread of nuclear weapons, a global debate is rising on the merits – and feasibility – of total nuclear disarmament.
The US-Russia nuclear arms deal that Obama is slated to sign April 8 signals a modest, but significant, step forward.
Presidents Kennedy, Reagan, and now, Obama all envisioned a world free of nuclear weapons. The US-Russian START accord, announced Friday, is a next step in that direction, experts say.
Their latest defiance will undermine his grand goal. He must act more forcefully.
New Security Council resolution doesn't name Iran or North Korea. But France's Sarkozy singles them out, suggesting more must be done to address nuclear violators.
Obama will chair a UN Security Council summit on nuclear nonproliferation Thursday – the first US president to preside over the body.