To me the real question is: "When is the US going to wake up to the fact that we're on the metric system?
Medications are metric, liquor is metric, cars are gradually converting to metric, grocery stores and the Home Depot are about 1/2 and 1/2. It looks to me like the only people who haven't figured it out yet are the law makers. They keep telling us that we're on the English system but today the English system is metric.