Government biometric technology programs have a long history — going as far back as fingerprinting by police in the 1800s. Current government biometric programs may use data like fingerprints, voice scans and facial recognition, along with technology like AI and big data analysis. The Department of Homeland Security is one of the best-known users of biometrics. The IRS put a plan to use biometric identification on hold after privacy experts raised concerns about the security of taxpayer’s biometric data.