Those are vague terms.
Some people consider the death penalty a crime against humanity.
Others would include abortion in the definition. As the treaty is written, there would be no right to confront witnesses or to be tried by a jury of peers. Nor would double jeopardy be banned. From an American perspective, that would be unacceptable. Clinton concedes the treaty is flawed but says he wants to reaffirm America's opposition to genocide and other such acts.