Deep Look | Samurai Wasps Say 'Smell Ya Later, Stink Bugs' | Season 6 | Episode 5 | PBS

It looks rather harmless at first glance. With a speckled exterior and a shield-like shape, the brown marmorated stink bug doesn’t appear to be any different from any other six-legged insect that might pop up in your garden. But this particular bug, which arrived in the U.S. from Asia in the mid-1990s and smells like old socks when it is squashed, is a real nuisance.