Unified ID card is one of the central topics in the privacy storm in the United States in the past century.
In the history of the United States, the federal government has never issued a unified national ID card. But in real life, there are three documents that play the role of ID card to varying degrees. One is the driver’s license, the second is the passport, and the third is the social security number. During the New Deal of Roosevelt, in order to establish a social security system, he proposed to establish a social security account for every working person. As soon as the idea came out, it was immediately fiercely opposed by the “privacy faction”. Finally, Roosevelt compromised with Congress and guaranteed that this number would only be used for social insurance, would never be used in the field of identity identification, and would be kept confidential. The proposal was finally passed by Congress.