Ten years ago, the Port of Los Angeles signed a court-ordered agreement to reduce air pollution at a massive new terminal. Ships tied at the dock were supposed to turn off their diesel engines and plug in to onshore electricity. Trucks taking cargo up the Alameda Corridor were required to use natural gas. But Mayor Antonio Villaraigosa told Port Director Geraldine Knatz to be "flexible," and she was -- with an important customer, China Shipping. The new rules were not put into effect. Last year, Mayor Eric Garcetti appointed Gene Seroka the new port director, and he's in charge of setting things right.