 RESTON, Va.--BUSINESS WIRE--Science Applications International Corp. NYSE: SAIC announced today the appointment of Dr. Garth Graham, director and global head of Healthcare and Public Health Partnerships at YouTube and a former U.S. Deputy Assistant Secretary of Health at the Department of Health and Human Services, to the companys board of directors, effective March 15. We are excited to welcome Dr. Graham to SAICs board of directors. He is a leading authority on social determinants of h 