The US, as a sovereign nation, does not have to accept UN policies, especially since the UN cannot do much without them, enforcement wise. If the US is accepting UN policies, and you don't like it, then perhaps you should look into changing your leaders.
This thread is about Britain, a member of the EU, who has accepted the policy of using the metric system and is no attempting to enforce it.
I applaud the fact that these guys made a stand - they sound like good Americans!
Understand that we think differently in politics because we are from different countries. You don't feel like, or read information about how things slowly slip away, till your overtaken by an outside force. So you let them steal little by little. That is why it is important to stand up for your rights when some hose bag is trying to convert you to something than less than before. Perhaps you cou read in some of the threads about the frog in the pan story. By the time you relize your freedoms are stolen you to will end up under the UN flag. Remember years from now that some guy in Washington state told you so.