Table of Contents

Table of Contents

Homeland Security
Chapter 1. Border Security: U.S. Government Efforts to Strengthen Nonimmigrant Visa Security and Address High-Risk Air Travelers
Chapter 2. Aviation Security: TSA Improved Covert Testing but Needs to Conduct More Risk-Informed Tests and Address Vulnerabilities
Chapter 3. Combating Nuclear Terrorism: NRC Needs to Take Additional Actions to Ensure the Security of High-Risk Radioactive Material
Chapter 4. 2017 Disaster Contracting: Actions Needed to Improve the Use of Post-Disaster Contracts to Support Response and Recovery