Everything I need to know about Barack Obama I learned as a Cub Scout den leader. Last week I watched an American president and a Russian leader sign a START treaty. I almost checked the calendar, wondering if I'd been transported back to 1980. In news stories of the summit I found a link to an article Barack Obama had written in 1983 while at Columbia University titled "Breaking the War Mentality." Back then, Obama was firmly in the nuclear freeze camp. It's true that many of us held views as college students that seem quaint and naïve after two...