Ken Salazar, the U.S. Secretary of Interior, addresses the crowd at the Joining Forces’ Honoring Members and Families event at the Colonial National Historical Park in Yorktown, Va., May 15, 2012. Salazar’s announced that annual passes will be available free of charge to active-duty service members and their dependents, granting access to more than 2,000 national parks, wildlife refuges, national forests, and other public lands around the nation in the coming years. (U.S. Air Force photo by Senior Airman John D. Strong II/Released)