Saw an interesting program on the Discover Channel about mega-tsunamis with waves over a kilometer tall (or even several kilometers tall).
Most of the units given were in SI only (even by the American sounding narrator). In a few spots the narrator used US Customary units and a few other cases he used SI followed by US Customary. This shift by the Discovery Channel strikes me as purposeful. I'm guessing they've made a decision to enter a transition phase where they emphasize SI but give enough US Customary to avoid scaring off those in the audience who are not comfortable with SI. It looks like a good sign. Ezra
