Like bombs. For decades, dogs have been used by various departments — police, Homeland Security, the Transportation Security Administration — to sniff out potential bomb threats. They sweep ...

Theo Burman is a Newsweek Live News Reporter based in London, U.K. He writes about U.S. politics and international news, with a focus on infrastructure and technology. He has covered technological ...

His exceptional sense of smell and small size make him a great fit for his newfound career as a bomb-sniffing dog. Meet Patron, the bomb-detecting Jack Russell terrier who has saved countless lives.

The technology is called TREDD, which stands for "Transit Enhanced Detection Dog." It takes the idea of the bomb-sniffing dog to a whole new level. TREDD is an advanced explosive detection system.