It's very personal in its politics, very bitter and very negative.

I don't think I would have to run a campaign that's financed like General Motors.

Just like Sept. 11, only with nuclear weapons this time, that's the threat. I think that is the threat. I think it's just facing reality. It's not a happy reality, but it's reality and if you don't deal with it, it will become even more unpleasant.

If a prosecutor in The Hague decides that the U.S. has not followed through effectively on an investigation - is unwilling or unable to carry it through - then that person, that prosecutor, in an unreviewable fashion gets to second-guess the United States? That is unacceptable. That is an assertion of authority over and above the U.S. Constitution.

By creating a prosecutor who is overseen over by a court, they are melding executive and judicial power in a way that can lead to terrible abuses - as the founders of America understood full well. It's why they created a system of separated powers - to set up a constitutional mechanism that would enhance freedom, by making sure that no one's accumulation of power could predominate over [that of] others.

I have decided not to run for president.

We estimate that once Iraq acquires fissile material - whether from a foreign source or by securing the materials to build an indigenous fissile material capability - it could fabricate a nuclear weapon within one year.