Here's How People Drive When They're Really, Really Stoned

Now that marijuana is legal for recreational use in Colorado and Washington State, authorities need some way of deciding when a person is too stoned to drive. Law enforcement has set legal limits, but are they too low? Washington TV station KIRO got a bunch of people high and set them loose on a police road course,… » 2/19/13 9:40am 2/19/13 9:40am