Kevin Poe, the original "dark ranger" of the National Park Service, discusses the dark, starry skies high over the National Park System in this week's episode of National Parks Traveler's podcast series. Contributing writer Kim O'Connell shares some insights from her research into how Venezuela's national parks are faring during these times of social and political turmoil in that country, and host Kurt Repanshek concludes the show with a look at some of the park system's "devilish" places.