I presume that we are all deeply saddened by the mass murder of Virginia Tech students and faculty. It was a savage and cowardly act. The gunman chained the doors to prevent his targets from having any real chance of escaping his rage. Then, he shot himself to would evade any justice this world could mete out. There will be commentary and analysis ad nauseam. And in the next while, there will be another school shooting. I suggest we take the energy from our grief and do something other than shake …