Rep. James Sensenbrenner (R-Wis.) said RFID was still an unproven technology and would add costs to new passports. Bar codes could be used to carry biometric identifiers instead of RFID chips, he said. The congressman wrote the Enhanced Border Security and Visa Entry Reform Act of 2002, which stipulates new biometric passport requirements for the 27 so-called visa-waiver countries. Citizens from these countries dont need visas to enter the U.S. if they come for 90 days or less.”]
Source: https://www.csoonline.com/article/2118171/lawmaker-rips-rfid-passport-plans.html