I make no apologies for being reasonable.

It is possible for leaders or regimes to be cruel, bigoted, twisted in their world views and still make rational calculations with respect to their limits and their self-preservation.

Today we're seeing that climate change is about more than a few unseasonably mild winters or hot summers. It's about the chain of natural catastrophes and devastating weather patterns that global warming is beginning to set off around the world.. the frequency and intensity of which are breaking records thousands of years old.

But race is an issue that I believe this nation cannot afford to ignore right now. We would be making the same mistake that Reverend Wright made in his offending sermons about America - to simplify and stereotype and amplify the negative to the point that it distorts reality.

America ranks 21st when it comes to math education. We rank 25th when it comes to science. We used to be number one in the proportion of college graduates. We now rank ninth. And at an age where knowledge, skills, are the determinant of how successful we're going to be, unless we reverse that we're going to keep slipping behind economically to a lot of other countries.

If you're 54 or 55, you might want to listen because this will affect you. The idea, which was originally presented by Congressman Ryan, your running mate, is that we would give a voucher to seniors and they could go out in the private marketplace and buy their own health insurance.

This is a core principle of my presidency - if you threaten America, you will find no safe haven.