Does the National Park Service have an obligation -- before the public comment period closes -- to better inform the general public about proposed changes to the existing gun regulations? While those who closely follow national park issues and gun issues more than likely are aware of the proposal to allow park visitors to arm themselves, does the general park-going public?

On a clear day, you often can see for miles and miles. But as a report from the National Parks Conservation Association points out, clear days are harder and harder to find in our national parks under the Bush administration's relatively laissez-faire approach to coal-fired power plants.

Visiting national parks could be hazardous to your health. That's the conclusion that can be drawn from a snapshot of health and safety conditions across the National Park System.

Moving at a politically expedient speed, Interior Department officials are proposing to allow national park visitors to carry concealed weapons with them.