If an Israeli company has its way, mice will be the new frontier in airport security. BioExplorers has trained its little critters to sniff out telltale signs of explosives and narcotics, reports AFP. Under its system, travelers would pass through a small booth, and mice in a nearby chamber would be able to sniff the air to detect possible trouble. Preliminary experiments have had good results, and the program will be tested in a larger pilot program next year. "They have a very developed sense of smell, more than that of dogs," says the company founder.