“This database and sensor project will integrate advanced quantum and classical sensing technologies with Artificial Intelligence and ultimately deploy proven concepts and end products anywhere in the CBP environment,” the justification document reads. CBP and General Dynamics did not respond to WIRED’s requests for comment. Last week’s justification does not get into detail about which methods its “quantum sensors” would use or what information the AI database would store and analyze. The July request—which notes that the devices would be used to identify substances like fentanyl, ketamine, cocaine, methamphetamine, diazepam, and MDMA—makes no mention of artificial intelligence or a database. The 2024 paper, for instance, explains how “quantum dots” and fluorescent dye can be used to detect fentanyl and 58 of its analogues.