Yes, and Latvia had a population of about 2.5 million at this time. The article suggests that 24,000 people were recruited as agents and only 4,000 are found am

Yes, and Latvia had a population of about 2.5 million at this time. The article suggests that 24,000 people were recruited as agents and only 4,000 are found among these cards. That's not quite high enough to be institutionally aware of every human in the country but it's not that far off. Discard the children, the sick, and the elderly and you're pretty much covered.