I was surprised this morning to discover that a blogger on the Motley Fool personal-finance website quoted me – or rather, an article I wrote a few years back on the US economy during World War II – in an op-ed on the need to move to renewable and green energy. This would be gratifying even if I didn’t agree so much with the argument that we as a society have within our capacity, if not our will, to launch a huge effort to switch to sustainable energy sources, and then reap the economic, environmental, and social benefits of such a changeover. We need some bold leaders to push this point.