War Crime Immunity?

Passing a law in Senate and Congress, pardoning one's own and cronies' "war crimes" retroactive from the beginning of "crimes against humanity" so that "war criminals" remains to be untouchables forever is a sheer disgrace to America's graceful past of leading the fights against other "war criminals". World wide credibilities get more disintegrated amidst shameful partisanship. Will there be a "beacon of light" emerging soon from this darkest chapter of American history?