The Wagyu Brothers, a Tokyo hamburger shop, aims to produce the best burger on Earth, using high-grade, hand-chopped Wagyu beef. @adamyamaguchi samples their Wagyu burger, and talks with hamburger expert George Motz about how, in a world of social media, the proliferation of information about burgers is making the competition for best burger more heated than ever. #tokyo #burger #wagyubeef #wagyubrothers