When the plane hit the Pentagon, Cheryl Thompson was a mile and a half away in the middle of a meeting in her Virginia office. But she was thousands of miles from her home and family in St. Louis, Mo. Thompson is on a nine-month assignment to the Washington, D.C., area to develop training programs for the U.S. Postal Service, where she is a retail operations analyst. She is also the president of the Society of Government Meeting Planners.