The first episode of The National Parks: America's Best Idea, the new Ken Burns film, aired tonight on PBS. As I watched it I thought about the new Yankee Stadium, where the Yankees clinched the AL East today for the 16th time in franchise history.Our national parks are full of beauty and wonder: Majestic waterfalls, awesome geysers, trees that leave you speechless, mountains that take your breath away, and much, much more. I watched all of this splendor tonight and thought to myself: Yan...