We get to see a much more sensitive side of John Cena’s extremely patriotic murderer in the latest trailer for the upcoming HBO Max series “Peacemaker,” and folks, he’s having “feelings about things.”You all remember how, in “The Suicide Squad,” he said he loves peace so much that he doesn’t care how many men, women and children he has to kill to get it? Looks like you can remove “children” from the list.