With this being the season for mid-term exams, I am reminded--and will be sure to remind my students--of a comment Albert Einstein once made. He was asked, "Dr. Einstein, why is it that when the mind of man has stretched so far as to discover the structure of the atom we have been unable to devise the political means to keep the atom from destroying us?" Einstein replied, "That is simple, my friend. It is because politics is more difficult than physics."