I think fatigue monitoring will be required in all commmercial or transport vehicles eventually, no matter what the industry. Remember the Exxon Valdize? How many billions of dollars in damages as well as incalculable destruction to marine habitat happened due to a compromised operator? In that instance it was due to drinking, but the CRAM can detect decrease in alertness levels no matter what the cause. So every time a poster on this board claims there is no demand/need for fatigue detection devices it ends up being refuted incontovertibly again and again by the great research of our intrepid longs.