Although I haven't been following most of the matches so far, I have been reading post-game summaries online. Remember that new goal-line technology I mentioned earlier? Apparently, that was used for the first time in today's France vs Honduras match (which France won 3-0). Apparently, the Honduras goalie accidentally knocked the ball passed the goal line as he tried pull it away from the goal. Many people didn't trust the call at first, likely because they were watching their TV that showed only one angle. The new goal-line technology uses seven cameras around the goal to definitively show if the ball went past the goal line, and if that does happen, the referees are immediately informed by a device on their wrist. In other words, no more bad calls on whether or not a goal was scored.
Tomorrow, I will be watching the match between USA and Ghana (and maybe the Germany vs Portugal match, too). Compared to the American team, those three other teams are pretty good (which is why many people online have been calling it "the Group of Death"). Of the other three teams, I think Ghana is the most likely one for USA to beat. I'm not expecting much, but upsets have already happened, so we'll see.