it is different when you see the positions again calmly. after watching them again:
I think the 3 red cards were all fair.
USA's disallowed Goal was 100% wrong, so that was offside, because the US player was on the line between Buffon and the shooter, he wasn't passive there. I am assured by these comments by a professional refree.
I still think that Gattuso's shot's positions wasn't offside at all, and I don't know if the keeper could save that opne.
Pulling the shirt of Iaquinta could be given a penalty.
and some minor mistakes, Actually the refree didn't have a bad match at all, it's different when you watch it with nerves and comment at the same time. I think he had a good match, he made brave decisions. and ofcourse he had his mistakes too..