Why should you care about privacy when you have nothing to hide? 

You may not be making bombs, hiding weapons, selling illegal drugs or participating in other unlawful activities in your home, but that doesn’t mean you are willing to let the police enter and search it at any time of night or day without your permission, or a good legal reason and a search warrant.

Welfare needs Aadhaar like a fish needs a bicycle 

Does welfare need Aadhaar, or is it the other way around.

Comparison with SSN 

Social Security Number (SSN), the nine-digit number, which is used widely by government agencies in the US, is often used as an example of an advance economy successfully doing something similar to India’s unique identity project. But there are important differences between the two, starting with the fact that the Social Security Number is, well, not an identity number.