Hunt is on for black boxes of Egypt Air Flight 804

Sun, May 22: An Egyptian submarine is joining the hunt for the black boxes from EgyptAir Flight 804. President Abdel-Fattah el-Sissi says it will take time to determine the exact cause of the crash, which killed all 66 people on board. Leaked flight data published by The Aviation Herald shows a sensor detected smoke in one of the plane’s bathrooms and a fault in two of the cockpit windows. Mounting evidence is pointing to a sudden, dramatic catastrophe that led to the crash. Aarti Pole reports.