I am concerned that the vague guidelines and policies used by the NSA for intelligence collection and sharing, in conjunction with elusive direction from the Administration, have led to intelligence being collected on sitting members of Congress for political purposes.

We are in a conflict, whether we like it or not. I think we have to identify the enemy and call it by its name. And the enemy is an ideology rooted in militant Islam.

If your goal is to destroy ISIS, there needs to be a ground force. It could be American or foreign.

Thousands of our post-9/11 veterans carry the invisible burden of post-traumatic stress, and there is an overwhelming need to expand the available treatment options.

Climate change - we can debate that until the cows come home, for lack of a better way of stating that. The bottom line is, I do not believe that man is contributing to that factor.

Climate change deniers would have us believe that oil, gas, and coal are the only ways to power a modern, industrialized society. They are wrong, and the proof is all around us.

As an environmental scientist, I think our first need is to feed and shelter and nurture. That has always required the exploitation of plant life, and it always will.

There are grave misgivings that the discussion on ecology may be designed to distract attention from the problems of war and poverty.