The school is in the process of patenting a process in which dogs would sample the air left in the wake of travelers passing through an airport terminal.
PetTravel.com notes that KLM recently banned four breeds of snub-nosed dogs in the cargo hold, and Delta Air Lines is restricting all pets from the cargo hold of its B767s.
Much about Cairo, and the Special Ops dogs, remains a mystery, as one former veterinary technician at Lackland Air Force Base in San Antonio, discovered a few years ago.
Indeed, being focused on odors -- which themselves require air to move, or a surface to light on -- means that for my dogs, the street outside our apartment building is different each time we step out the door.