President Obama spoke at the UN where he addressed the possible easing of tensions between the U.S. and Iran, and reasserted the need to hold Syria accountable for the use of chemical weapons: “While we need to be mindful that the world is full of unintended consequences, should we really accept the notion that the world is powerless in the face of a Rwanda or Srebrenica? If that’s the world that people want to live in, then they should say so, and reckon with the cold logic of mass graves.”

+ The world has been watching to see if Obama and his Iranian counterpart Hassan Rouhani would share a historic handshake at the UN. So far, it hasn’t happened.