Witnesses:
The Honorable Reginald Brothers, Under Secretary for Science and Technology, Department of Homeland Security
Mr. David C. Maurer, Director, Homeland Security and Justice, U.S. Government Accountability Office
The Honorable Reginald Brothers, Under Secretary for Science and Technology, Department of Homeland Security
Mr. David C. Maurer, Director, Homeland Security and Justice, U.S. Government Accountability Office