Meet the man who tracks down and shames the Internet's worst trolls

Trolls are a staple of Internet culture but recently some Internet users have taken to exposing some of the very worst offenders who do things that go beyond run-of-the-mill online cruelty, such as sending out rape threats. Technology Review has written a lengthy profile of Swedish journalist Robert Aschberg, who tracks down some of the most vile trolls on the web and then publicly shames them by reading back things they wrote online. RELATED: Study finds online trolls much more likely to be sad...