Good point. Silence in the face of plain slavery is not so golden.
Data, some biometric, is a key aspect of gathering individual’s information on government computers. Some legislators are squawking about the necessity of mass collection, including those not convicted of crimes. DNA samples are demanded in some government jobs, and so forth. There maybe no end to the amounts of data deemed necessitated.
To be sure registrants have lost the right to remain silent. This is a basic right. Instead, data(commodity) is demanded under threat of imprisonment.