 Three astronauts, including Rick Husband, the final commander of Space Shuttle Columbia and recipient of the Congressional Space Medal of Honor, graduated from the university. U.S. Marine Corps Major and Medal of Honor recipient George H. O 'Brien Jr. is a distinguished alumnus. Richard E. Cavazos is a two-time Distinguished Service Cross recipient and the first Hispanic and Mexican American to advance to the rank of four-star general in the U.S. Army. United States Air Force Major General Wendy Motlong Masiello, one of the highest-ranking women in the United States Department of Defense, is a 1980 graduate of Texas Tech's Rawls College of Business Administration. Alumna Arati Prabhakar, the current head of DARPA, was the first woman to head the National Institute of Standards and Technology. Texas Tech's influence on the business world is seen in such people as General Motors Chairman and CEO Edward Whitacre Jr., Finisar CEO Jerry S. Rawls, Belo Corporation CEO Dunia A. Shive, and Wellpoint, Inc. president and CEO Angela Braly, ranked by Fortune magazine as the most powerful woman in business. Scott Pelley, anchor and managing editor for CBS Evening News and correspondent for 60 Minutes, is a graduate of the recently renamed College of Media and Communication. Phil McGraw (Dr. Phil) attended Texas Tech in the 1970s, during his first marriage.
