Thanks to all for an excellent discussion this morning. We ran out of time to discuss the "Afterword" for the (late) 2009 paperback edition, so if you have some further thoughts--or thoughts you just didn't get a chance to express this morning--please add them here. And perhaps you've been thinking about our overall discussion, and realize you have some things you'd like to add. Here's the opportunity!
Click on Kolbert's name to see an interesting interview with her from 2006.