One thing you often hear from people who’ve seen a disaster up close is that images from televisions, the internet and newspapers don’t come close to doing it justice. Another thing witnesses say is that after seeing such devastation for yourself, you feel like you have to do something to help. Both those things are absolutely true, I recently discovered. I grew up in western Massachusetts, and as I drove yesterday to Holyoke to visit my parents, I decided to take a detour through downtown Springfield. I had no agenda; I suppose nothing more than curiosity about what the tornado devastation …