Postcards of Mushroom Clouds By Tom Vanderbilt Culturebox Posted Monday, July 18, 2011, at 3:30 PM Tweet Want more of your favorite content on the MSN homepage? Try the news, sports or entertainment editons. Tweet MYSLATE Save this story. Follow all Culturebox articles. Follow the Arts section. Follow stories by Tom Vanderbilt. MySlate is a new tool that lets you track your favorite parts of Slate. You can follow authors and sections, track comment threads you're interested in, and more. Click here to load comments.