You say that because you're spanish !
In other times, referee error lead Spain to win.
In sport you should admit referee is a man, and a man isn't perfect and can make wrong decision.It's easy for us to see if it's right or wrong with the video. In the game, decision has to be taken within second.
This is useless to say 'fuck the korean' and so.

And if you think that it's because FIFA payed the referee or any other corruption, admit that it is done every time, every competition and that's why FIFA decide no to use video as 4rd referee. So don't shout about people but about $ in this crappy sport (coz of $) called soccer.