There is a scene near the end where the Marine states that vengence is coming - from the U.S. Also, anothe scene where a police officer from Wisconsion is seeing it on televsion and calls them bastards. The movie does not identify one way or the other who did it. I do not know if it should. Anyone with a lick of sense should know who did this. I guess if there was one subliminal message is when they are showing news accoutns throughout the world and everyone is crying and saddened - even in the mid-East! During that scene, I wanted Stone to show that Palestinian woman in joyous rapture issuing her little chirping sound. But he did not. I hope this helps.
To actually answer your question, it has not changed my resolve, especially after this past week and month. We have to eradicate this scourge from the earth!