There have always been two Al Gores. There is techno-enthusiast Al, who, during his 2000 run for president, proposed that an online network ("G-Bay") be used to auction off surplus government property. I found techno-enthusiast Al beguiling when I was researching manned Mars missions for his 1988 presidential campaign. But there is also Savonarola Al, who loudly denounces the excesses of modern capitalist society and demands repentance—though, given Mr. Gore's lucrative commercial dalliances (most recently, the sale of his Current TV network to the repressive, oil-rich Qatari regime), perhaps Jimmy Swaggart would be a closer clerical model than Savonarola. Each...