Enlarge this image Bas Czerwinski/AFP via Getty Images Bas Czerwinski/AFP via Getty Images An arrest warrant has been issued for Russian President Vladimir Putin; arrest warrants have also been requested for senior Hamas and Israeli officials, including Israeli Prime Minister Benjamin Netanyahu and Hamas leader Ismail Haniyeh. On today's episode, we travel from the battlefields of the U.S. Civil War, through the rubble of two world wars, to the hallways of the Hague, to trace modern attempts to define and prosecute war crimes.