Can the U.S.A. mens basketball team lose?

Yesterday, the U.S.A. mens basketball team beat Argentina 126-97 thanks to a third quarter surge by Kevin Durant. However, if  it wasn't for that fantastic third quarter, Argentina could have beaten the U.S.A. squad. For the first half of that game it looked as if Argentina could actually beat the U.S.A. team, their play style could easily be replicated by the Spain team, lead by the Gasol brothers and Serge Ibaka. This could be very dangerous for team U.S.A. if they do not adapt quickly and be able to force out more shots, rebound better, and stop drawing personal fouls. If they can not adapt to theses problems, there is a good chance that they will lose, but if they are able to fix these problems I believe that they will be able to win the gold