A&E True Crime spoke with Michael Santos, who spent 25 years in prison, about what it was like to enter a world so dependent on technology after being incarcerated for so long.

People are trading bitcoin for goods and services on the illegal marketplaces of the dark web, where the easy, instant flow of the cyptocurrency allows users to tap into their darkest natures--all from the anonymous comfort of their home computers.

Some people aiming to make DIY guns have found resources on the Internet, including Cody Wilson's Defense Distributed, stirring up a hornet's nest of legal and ethical challenges.

Q&A with Nick Bilton on his book, "American Kingpin: The Epic Hunt for the Criminal Mastermind Behind the Silk Road," about Ross Ulbricht's extremely successful (and totally illegal) website.