I met and chatted with Sean at Dragon*Con this summer... we talked for several minutes. He's done a lot of work with military folks, and yes, he's very thoughtful, articulate, and interesting. Also very sweet with a spontaneous sense of humor. He randomly reached over with his autograph sharpie and signed my lunch. I was dressed in my Frodo costume at the time, and he called me Frodo... was very funny. I was definitely impressed with the guy, and I'd love to meet him again.