I suppose if I separate the single-officer patrols, they've already seen a level of impairment that's indicated that the vehicle needs to be pulled over and checked. I'm relatively comfortable with that. On our bigger drug buses that are pulling over everybody, the concept is that it be randomized, whether it's every 15th car that will be tested or.... We are getting people who are 70 years old tested for drugs. For me that's an indication that at least it's random, and they're not picking on the 22-year-old with dreadlocks.
The idea is that it's randomized. We haven't had any challenges come back that we're profiling in our testing, and all our roadside large drug testing operations are supervised by senior officers. We're pretty comfortable with it.