Every four years, the PBS news-documentary series Frontline does an episode called “The Choice,” in which they give side-by-side biographies of the two candidates, explaining the path the brought each candidate to this particular election. The 2004 and 2008 versions were both excellent; in each case it was probably the best single piece of journalism to come out of its respective campaign. The 2012 version, on Obama and Romney, just aired last night; I haven’t had a chance to watch it yet, but I have no reason to doubt that it will live up to the high standards set by its predecessors. You can watch Frontline’s “The Choice 2012″ online here, or check your local PBS listing; it will likely be rerun a number of times between now and Election Day. I strongly encourage everyone to watch it.