Nuclear stand-off: can Joe Biden avert a new arms race?

Analysis: new president will face threats on multiple fronts, including from Russia and Iran, and must decide future of US arsenal

Joe Biden will have to make critical decisions on arms control in his first days in the White House that could determine whether a new nuclear arms race can be averted, and possibly reversed.

When the new president takes the oath of office on 20 January, there will be 16 days left before the 2010 New Start treaty with Russia expires, and with it the last binding limit on the world's two biggest nuclear arsenals left standing in the wake of the Trump era.