Cover
Title Page
Preface
Contents
Figures and Tables
Summary
Acknowledgments
Abbreviations
Background
Project Purpose and Approach
DHS Screening and the Potential for Social Media
Study Approach
Organization of This Report
CHAPTER TWO: Framework for Centralized Capability: Mission Requirements
Required Capabilities for a Centralized Function
Policy Challenges
Background and Context
Existing Research on Data Aggregation and Methods Underscore the Difficulty of Identity Resolution
Implementing Identity Resolution: Insights from Expert Interviews
Considerations for DHS Implementation of Identity Resolution
Approaches to Identity Resolution
CHAPTER FOUR: Evaluating Approaches to Social Media Screening
Framework for Social Media Screening Metrics
Metrics for Social Media Screening
Implementing and Refining Metrics over Time: Best Practices and Guidelines
Summary
CHAPTER FIVE: Conclusions and Recommendations
Identity Resolution Poses the Most Difficult Challenge
Public Trust and Countermeasures—Threading the Needle
Recommendations for Metrics
Organizational, Resource, and Workforce Capacity
A. Expert Interview Methodology for Identity Resolution
B. Approaches to Identifying Potential Metrics
C. Detailed Findings on Online and Offline Data for International Populations
D. References for Detailed Findings on Online and Offline Data for International Populations
Bibliography