Sarah Lenz Lock is Senior Vice President for Policy in AARP?s Policy, Research and International Affairs (PRI) where she helps position AARP as a thought leader addressing the major issues facing older Americans.? Ms. Lock serves as the Executive Director of the Global Council on Brain Health, an independent collaborative of scientists, doctors, and policy experts convened by AARP to provide trusted information on brain health.? Previously, Ms. Lock was Senior Attorney/Manager at AARP Foundation Litigation conducting health care impact litigation on behalf of older persons.? Ms. Lock has been a Trial Attorney for the U.S. Department of Justice, a Legislative Assistant in the U.S. House of Representatives to Congressman Michael D. Barnes working with the Federal Government Service Task Force, and also worked at the law firm of Arent, Fox, Kintner, Plotkin & Kahn.