1. A machine-assisted method for screening a person, the method comprising: receiving, at a scanning device, an identification document presented by the person, the identification document showing (i) a machine-readable code that encodes personally identifiable information of the person, (ii) a biometric of the person, and (iii) printed information; scanning the machine-readable code on the identification document to extract personally identifiable information of the person; and in response to receiving determination results that the extracted personally identifiable information does not match a record stored at a database, providing an indication to select the person for manual screening during which the identification document is manually inspected, while in response to receiving determination results that the extracted personally identifiable information matches a record stored at the database, expediting screening of the person such that whether to admit the person is determined faster than manual inspection by: automatically accessing data encoding the biometric of the person on the identification document for comparison with the person presenting the identification document; in response to receiving a determination that the biometric on the identification document identifies the person presenting the identification document, automatically determining whether the identification document is digitally watermarked to carry payload data; and in response to determining that the identification document is digitally watermarked, automatically retrieving the payload data from the digitally watermarked identification document.