Endangered National Parks

Our national parks system is a thing of beauty -- from the depths of the Grand Canyon to the peaks of the Smoky Mountains. With 285 million people visiting at least one of the 392 parks in 2009, they are also some of the most popular tourist destinations in America. But the parks are in danger. As Kurt Repanshek, journalist and founder of NationalParksTraveler.com, points out, there are a number of different issues that are contributing to downfall of our most precious spaces.