A missing Washington Post journalist who is suspected to have been killed by Saudi Arabian agents in Turkey has sparked harsh words from President Trump and from the Arab nation. Mr Trump said if it was found that Saudis had killed Jamal Khashoggi then there would be severe punishment. Saudi Arabia has hit back overnight saying that it would respond to any action with more severe action of its own. New York Times Middle East correspondent Ben Hubbard is in Beirut. He talks to Susie Ferguson.