Customs and Border Protection collects a wealth of information through the technologies deployed at the ports of entry, all of which is stored in a master crossing record the agency keeps on every individual who enters the country.
That record contains information gathered at every crossing: the time, date and port of the crossing, the information taken from their travel documents, photos and data collected on their belongings and vehicles, and determinations made by customs officers throughout the process. For non-U.S. citizens, this also means biometric data, such as photos and fingerprints.
That record also includes data culled from a variety of federal databases and sources.
“That was when they suspended the Constitution. They said it would be temporary. There wasn’t even any rioting in the streets. People stayed home at night, watching television, looking for some direction. There wasn’t even an enemy you could put your finger on.”—Margaret Atwood, The Handmaid’s Tale