WASHINGTON -- Turning once again to what the sociologists call "coping mechanisms": There is marijuana and then there is alcohol. They are increasingly the civilized options. Consider alcohol. Consider a suave scotch and soda. One does not sit down to a scotch and soda to get blitzed, unless one is a veritable drunk. One sits down and sips a scotch and soda while conversing with friends. Perhaps one reads a book. One enjoys the scotch for the taste. With scotch there are scores of different tastes. One drinks a single malt. One drinks a blend. The same is true with...