 The Oscar-winning movie producer John Landau has died. He was 63. He worked closely with director James Cameron on the blockbuster Titanic and the two Avatar films. His family announced his passing this weekend. A cause is unclear. The world's busiest port for passenger traffic is taking a big step to reduce pollution from cruise ships. NPR's Greg Allen reports a port of Miami spent $125 million to build a system that allows these floating cities to turn off their engines and plug into the grid while docked.