That is pretty insane to have all your household items tagged and if moved too far they set off an alarm. What about if you sell off something to get some cash for whatever reason, Im sure that would also create a snag in the system. As for speed control regarding cars, that is just insane, and poses a huge safety risk. Take for instance your in a 20mph area in a town, and some crazy freak (or a fire truck) is barreling down on you, only doing 20 to get out of the way might not be enough if the nearest space to get off the road is like 1000+ feet away. There already are governors in most 03 and up cars, why would people want yet another thing to take away their control of the car? As for the BAC detection system, thats actually a pretty good idea, and some states are employing it in cars for people who have been conviced of drunk driving as part of a probation system.