SPEAKER INDEX Segment 2 of 2 Previous Segment (1) CONTENTS INSERTS NO SPEAKERS DEFINED IN THIS HEARING CONTENTS SPEAKERS INSERTS TESTIMONY OF DR. THOMAS S. HARTWICK, CHAIRMAN, COMMITTEE ON ASSESSMENT OF TECHNOLOGIES DEPLOYED TO IMPROVE AVIATION SECURITY, NATIONAL RESEARCH COUNCIL/NATIONAL ACADEMY OF SCIENCES; ALEXIS M. STEFANI, ASSISTANT INSPECTOR GENERAL FOR AUDITING, UNITED STATES DEPARTMENT OF TRANSPORTATION; DR. GERALD L. DILLINGHAM, ASSOCIATE DIRECTOR, TRANSPORTATION ISSUES, RESOURCES, COMMUNITY, AND ECONOMIC DEVELOPMENT DIVISION, U.S. GENERAL ACCOUNTING OFFICE; AND ADMIRAL CATHAL FLYNN, ASSOCIATE ADMINISTRATOR FOR CIVIL AVIATION SECURITY, FEDERAL AVIATION ADMINISTRATION PAGE 16 TESTIMONY OF CHERIF RIZKALLA, PRESIDENT & CHIEF EXECUTIVE OFFICER, HEIMANN SYSTEMS; THOMAS M. VAIDEN, PRESIDENT, AVIATION DIVISION, INTERNATIONAL TOTAL SERVICES, INC.; BILL GILCHRIST, PRE-BOARD SECURITY SCREENER, INTERNATIONAL TOTAL SERVICES, INC.; AND RICHARD J. DOUBRAVA, MANAGING DIRECTOR OF SECURITY, AIR TRANSPORT ASSOCIATION PAGE 55 INSERTS SPEAKERS CONTENTS NO INSERTS IN THIS HEARING