Jonathan Adams & Scott Weidensaul

America's wildlife is our focus today, with two new books that show how far we've come in protecting our resources, but also how far we still have to go. Scott Weidensaul's book Return to Wild America is a reminder of the progress of the last half century. We'll talk with him in a few minutes, but first, conservation biologist Jonathan Adams. In his new book The Future of the Wild he argues that America's wilderness can't be contained in a few large, but scattered, national parks.