End of the road for the metric highway?

• Position: Drive Time - Brief article

The U.S. is the only major country that hasn't adopted the metric system. (Libya and Myanmar are the two other holdouts.) Along Interstate 19 in Arizona, however, distance is measured in kilometers--a throwback to the U.S.'s failed experiment with the metric system in the 1980s. Now the Arizona Department of Transportation says the signs' days may be numbered. They're old and need to be replaced, and if officials have their way. the new signs would be like all the others in the state, with distances in miles. Some who live 'along 1-19 don't care for the signs, saying they look foreign and are confusing. But...