Since most scientists and people working with technology in the states already use the metric system... yes I think the U.S. should officially switch. Granted there will be a few years where both systems will be in use, but all in all, eventually it would just make things easier. You would no longer have to really think about inches to a foot, feet to a yard, yards to a mile. It would always be 10 millimetres to a centimetre, 100 centimetres to a metre, 1000 metres to a kilometre (increments of 10)