which color medal did USA win the least at the 2006 winter Olympics

This seems to be more sports history than math.

Since this is not my area of expertise, I searched Google under the key words "2006 winter Olympics medal count" to get this source:

http://en.wikipedia.org/wiki/2006_Winter_Olympics

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.