Mattis has been sharply critical of President Barack Obama's policies on Iran and Obama's capping of troop numbers and campaign end-dates in theaters of war such as Afghanistan and Iraq. Mattis also appears to be a skeptic of the Obama-era policy of putting women into combat roles.

The senior director at the NSC for the Middle East is retired Col. Derek Harvey, an Arabic-speaking intelligence officer with a Ph.D. who served as the head of the U.S. military cell examining the insurgency in Iraq in 2003.

An intelligence officer and historian, Rayburn published a 2014 book, 'Iraq After America,' which is a must-read for anyone who wants to understand how Iraq descended into chaos in the years after the American troop withdrawal at the end of 2011.

The hard reality is that attacks by vehicles in public places are very hard to defend against in a free and open society. The best defense against such attacks is good intelligence, and that often comes from inside the Muslim community.

I think Democrats are right. We fight for the American dream, for the environment, for privacy rights, a woman's right to choose, a good public education system.

I believe education should be a right for every child, but tragically in many parts of world it is a privilege for certain children whose parents have money. There are 72 million children in the world who don't go to school and many of them are in Africa.

My high school English teacher in junior year, Dr. Robert Parsons, assigned us some Poe stories, including 'The Black Cat' and 'The Purloined Letter.' Being an animal person, I had trouble with 'The Black Cat!' I got hooked instead by 'The Purloined Letter,' a Poe story with detective C. Auguste Dupin.

My background was computer science and business school, so eventually I worked my way up where I was running product groups - development, testing, marketing, user education.