Could Bush & Cheney be tried for war crimes by an international court?Executed?

There seems little doubt, now, that the current administration deliberately lied to everyone to illegally declare war on Iraq. Hundreds of thousands of innocent Iraqi civilians have since died as a direct result of this deliberate tapestry of deceit. No,  I wasn't foolish enough to vote for them, but I and many betrayed Americans want justice. Is there any circumstances that would force them to accept a judgement from an international court? Or are they forever protected from extradition because they "served" our country as President & Vice-President? Is there any way our nation itself could attempt to right these terrible wrongs? Perhaps I have already tried & convicted these two. Fact is, they had lots of co-conspirators. What about all our own soldiers who have died and continue to die in an unnecessary war. I know there are millions in my beloved country who feel as I do. I am proud to be an American, but ashamed of what this Presidency has done and continues to do. I feel absolutely Patriotic to be writing this!!