The NYPD is deploying some new K9s on city streets, but don’t worry, these dogs aren’t trained to sniff out your drug stash, they’re on bomb patrol reports CBS. Called “vapor wake dogs,” they can not only detect virtually every kind of material used to make an explosive device, but also pick up on “particles actually lingering in the air” according to an expert who trains them, allowing the canines to find bombs and follow their wafting trail just like in old school cartoons.