ABC News -- ABC News' Karen Travers reports:Vice President Biden's wife Jill has written an essay for Veterans Day that will be featured in the Nov. 6-8 issue of USA Weekend Magazine. Dr. Biden writes that she and the vice president will visit Arlington National Cemetery on Veterans Day and spend time with veterans and soldiers in order to show their thanks. "On Veterans Day and every day, it's our duty to show appreciation for their service and remember that each of us has the ability to make a difference in the life of a service member," she writes. In the essay Dr. Biden describes her family's experience during the year her son Beau served in Iraq as a military lawyer and captain in the Delaware Army National Guard's 261st Signal Brigade. One...