^This. As I mentioned above, if they win and the Dutch win, the U.S. just has to maintain their +2 GD. If both sides are tied based on points and GD, then the next tiebreaker is goals scored (U.S. currently at 4, Netherlands currently at 2).
Exactly. If they win the group, they face the runner-up in Group G (currently Italy). If they finish 2nd, they face the winner of Group G (currently Sweden).
Had they had everything secured, I would have skipped Tuesday's match because of the start time. I'm now considering altering my sleep schedule to get up and watch that match.