It is hard to imagine at this point, but in just over a year, under a plan developed by Homeland Security, you may be asked to show a special federal identification to enter a national park. I can understand the security need behind having a passport to enter the country, and I can understand the need for important background checks before entering a nuclear facility, but needing the same federal security check to drive through a park? Absurd! -- Note: important update added to original story