Worked in a lab that did R&Din traceability of nefarious substances for a US three-letter agency (I couldn't touch those projects since I wasn't a citizen). And

Worked in a lab that did R&Din traceability of nefarious substances for a US three-letter agency (I couldn't touch those projects since I wasn't a citizen). And they made it very clear at the time that the best detector in airports for explosives and drugs were, by far, the dogs. No tech that was even in the pipeline at the time (~2010) could come close and glancing at detection limits of current scanners they're not there yet. So yes I would love to see clinical trials of disease-sniffing canines