As one who was a prosecutor for many years, I can tell you that having a tape recording of interrogations would help everybody. It would make clear if there had been improper pressure exerted on a defendant or witness, and it would also protect the interrogating officer from false claims that such pressure had been brought to bear.

The Tea Party isolated Mitt Romney from mainstream voters, linking him to a rabid ideology that he could not shake as he desperately tried to move to the middle in the closing weeks of the campaign. Lesson: The loudest voices don't often command the votes needed to win in November.

The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited - we are approaching a tipping point beyond which the opportunity to reverse the damage of CO2 emissions will disappear.

When you're in office, there are tangible moments when you can see tangible successes.

I believe in an evolving Constitution. A flexible Constitution leaves room for us to consider not merely how the world once was, but how it ought to be.

I think President Obama could have handled politics and policies differently. But he has been decisive, strong, and consistent - important qualities in a president. Mitt Romney is indeed an Etch A Sketch, the antithesis of leadership.

Shareholders have the right and obligation to set the parameters of corporate behavior within which management pursues profit.