Its clear to me that without a United Nations presence, there would be slaughter here. 21st century fratricide Rupert Wingfield hayes investigates the killing of the half brother of the north korean leader, allegedly by agents of the regime. The cold war at its very coldest Jonathan Beale reports from natos most northerly border, Norways Arctic circle, as the alliance steps up its defences against russia. It is a pretty inhospitable place, but every day, all year round, the Norwegian Army is patrolling this border. Also, tensions in the straits of taiwan as china flexes its muscle against what it sees as its breakaway state. Carrie gracie reports on beijings attempts to stop taiwan going it alone. To let taiwan float off towards independence well, that, to beijing, would be unthinkable. The war against fake news. Amol rajan reports from germany, the first country to use the law to try to stop false reporting. With elections coming up, theres a growing determination to take action again