Instead of a customs agent looking you over as they scrutinize your passport, imagine scanning your passport like you scan groceries at the self-checkout line. Surely the line would move faster, but at what cost? In addition to the standard passport information such as your name and date of birth, biometric passports (also known as digital passports) may include your fingerprint and iris pattern. Several countries are already using them or plan to start. Watch to see the downsides of global technology.