In 1832 there was no World Court, no United Nations Organization, and no UN Conventions Against Torture and Genocide. Both of those treaties have also been enacted into U.S. law in recent decades as the Torture Act and War Crimes Act. See,
http://www.dailykos.com/story/2006/2/24/13644/9576 These legal developments, along with changes in American politics, pave the way for Bush's Trial of Tears.
Under both conventions, the U.S. and all signatory states are obliged to enforce global treaties outlawing torture and genocide. If a country is either unwilling or unable to prosecute offenders within its own territory, every other signatory nation is obligated to take action -- including the use of military force, if necessary -- to detain and try offenders before an internationally-supervised tribunal. Examples of such enforcement in recent years include internationally-enforced trials in the former Yugoslavia and Rwanda.
Under the Supreme Court's Hamden decision, the Bush Administration enjoys no special protection for actions taken in violation of the Geneva Convention.
Besides, Dubya is no Andy Jackson, and the U.S. Army isn't going to stand in the way when they come to take him to face his Trial of Tears.