Sarah Montague speaks to Vladimir Chizhov, Russia's ambassador to the EU. Just months ago, Russia was congratulating President Trump on his inauguration and expressing hope that both countries would take their interaction 'to a whole new level'. Now, Moscow's relations with the US and the west are so bad that the Russian prime minister Medvedev talks of them as 'ruined'. Can Russia and the west mend their relationship before it's too late?

HARDtalk is in rural northern Germany to meet Niklas Frank, a journalist and writer but also the son of Hans Frank, the brutal Nazi Governor of Poland from 1939 to 1945. He was convicted of war crimes andexecuted after the Nuremberg trials for the major role he played in the deaths of millions of Jews and Poles during the Second World War. Niklas Frank tells Stephen Sackur how he's coped with the crimes of his father and why he will not let his fellow Germans forget the worst aspects of the Nazi era.