This Veterans Day, my mind returns again and again to a...

This Veterans Day, my mind returns again and again to a flight I took home from Baghdad in August -- and an unforgettable reminder of the obligation we have to all who serve the country we love. As we boarded the C-130, I looked into the cargo hold and saw a simple, aluminum coffin with a small American flag draped over it. We were bringing another American soldier home to his family and final resting place.