Moscow (AFP) - Gripping a scalpel, Vladislav Zaitsev makes an incision in the fold of skin between his client's thumb and index finger and pushes in a small glass cylinder. Alexei Rautkin, a 24-year-old programmer in a hoodie, is having a chip inserted in his hand so he can open the door to his office without swiping a card. "It's something I decided a long time ago," he says. "Mainly because it's convenient but there's also a kind of exclusivity, because practically no one else has this."Rautkin and Zaitsev are among a growing number of Russians interested in biohacking, a global movement who...