Want to leave your shoes on in the TSA screening line over the July 4 holiday weekend? Well, if you’re not younger than 12 or older than 65 (or a lucky member of the Pre-Check program), you could be in luck – The Transportation Security Administration is now using dogs to pre-screen passengers, sniffing for explosives before travelers get to the metal detectors and X-ray machines, MSN News reports.
This kind of passive screening can alleviate the need for more cumbersome procedures at the TSA checkpoint like removing shoes and taking laptops and bagged liquids out of luggage.