I think the U.S is a very overated squad, and i think the FIFA ratings dont reflect where they are in world football. I wouldn't be terribly suprised to see them not progress past the group stages.
Too many players not playing at the higest level overseas,, and there warm up games aren't terribly inspiring (all in the U.S) Morocco , Venzuela, Latvia and Angola.
Im pretty sure they will get found out....