On tonight's W News with Leigh-Ann Gerrans, as reports suggest the US and Iran have reached an agreement but President Trump still needs to give final approval, we speak to Lord Richard Dannatt, former head of the British Army, and Freddy Gray, Deputy Editor of The Spectator. Plus, as oil prices fall and markets react to the potential easing of tensions, we hear from economist Laurie Laird. And as the WHO chief heads to the Democratic Republic of Congo to support colleagues battling a deadly Ebola outbreak, UNHCR Spokesperson Rachel Criswell joins us from Kinshasa.