Results of a survey of visitors to Indiana Dunes National Lakeshore could likely be applied to many units of the National Park System: Those who took the survey said there's a need for more rangers, better funding, and improved access.

Interior Secretary Ken Salazar has issued an order directing the department and all its bureaus, including the National Park Service, to ensure the integrity of science conducted in those agencies. There also is a provision within the order to protect whistle blowers who believe the integrity is lacking.

Wreckage from a plane that went missing over Katmai National Park and Preserve in August was spotted Tuesday on the park's northern coast. Park Service officials said there was no indication that its four occupants survived the crash.