Title page

Contents

Highlights 2

Background 4

DHS Has Made Progress Addressing Past Challenges, But Additional Improvements are Still Needed 7

Chemical defense 7

Biodefense 8

Radiological and nuclear detection 10

Technology acquisitions 12

Employee morale 13

GAO Acknowledgements 14

Figure 1. First Responders in Hazmat Suits Practicing a BioWatch Safety Drill 5

Figure 2. Photos of Types of Radiological and Nuclear Detection Equipment 7