Search for AirAsia plane black box hindered by weather

Strong currents and blinding silt thwarted an attempt by divers to find AirAsia Flight 8501's black boxes, which they hope are still located in the recently discovered tail of the plane.
The flight data and cockpit voice recorders, which are crucial to helping determine what caused the jet to go down with 162 people aboard on December 28, are located in the rear of the aircraft.