PBS News Weekend

Since 2010, India has undertaken what is by far the largest citizen registration drive in history, by documenting most of its 1.3 billion people into a single national identification database. The system not only assigns everyone a number, like the Social Security number in the United States, but also records fingerprints and iris scans. On Saturday, NewsHour Weekend Special Correspondent Fred de Sam Lazaro reports how India succeeded in creating the biometric database and the privacy concerns it raises.