The convenient thing about the US regime changing every four years, is the US never has to be held accountable for their war crimes, for several reasons:

1. We have been the winners of the wars we fought in internationally, so we've controlled the war crimes tribunals.

2. There is a conspiracy among the thieves in the White House, ie that the first loyalty of government service at the highest levels of the executive and legislative branches, is loyalty to the status quo of our bureacratic rule as world superpower. This makes it impossible (as Robert MacNamara has proved again and again) for anyone to either admit that they committed war crimes, much less admitting fallibility on the part of the very fallible human men who have and will continue to ruin the world.

3. The men who engage in evil always believe that they are absolved of all guilt and shame for committing that evil, because they believe committing evil in the name of all that is good, is what is necessary for them to win. They rarely will make the public argument that they are morally right. They don't have to. They just have to assure their own people that committing evil is necessary for their side to win. The current Bush administration is quite masterful at this, because they are experts at appealing to the lowest instincts of human beings: fear, vengeance, racism, sexism, classism, religious bigotry, etc.