One of the tasks of the Presidency is to act as National Pastor/Grief Therapist/Voice of Reassurance to the nation when it faces a trauma of national proportions. It’s been that way since forever (see, for instance, speeches ranging from the Gettysburg Address to Reagan’s beautiful tribute to the crew of the Challenger). I think Obama handled that task admirably here. There are other days for politics. Today we grieve and remember that we must love one another.