Who will commit the gravest war crimes if elected

"The Republican candidates have seemingly been competing with one another over who would commit the gravest war crimes if elected. In recent months, one candidate or another has promised to waterboard, do a “helluva lot worse than waterboarding,” repopulate Guantánamo, engage in wars of aggression, kill families of suspected terrorists, and “carpet bomb” Middle Eastern countries until we find out if “sand can glow in the dark.” "