Tonight was supposed to be the Democrats’ chance to tell Americans where they stand on national security issues. Steven Spielberg’s film has just started–and it is supposed to be a tribute to American men and women in uniform. But so far, it looks like a Spielberg version of “Generation Kill,” the HBO series that has so far been a big bust with audiences. But what I am waiting to hear is what the Democrats have to say about the emerging threat from Russia; what will Obama do to counteract Iran’s nuclear ambitions; what do they think about the North Koreans’ decision this week to stop dismantling their nuclear reactor? Maybe Joe Biden will answer these questions, but I won’t hold my breath.