He's been called "a good guy working for us behind enemy lines," "one of our allies," "a man who gives us hope," and, "the ultimate badass." His name is Chuck Rossi, and he's a director of engineering at Facebook. He's also one of the company's most prominent gun enthusiasts, who, by his own account, has trained hundreds of fellow employees to shoot pistols. More recently, Rossi has taken on a new, unofficial, role: advocate for gun groups on Facebook. For months,... (GunPolicy.org)