Cody Wilson holds the Liberator, a fully-functional firearm that can be created using a 3D-printer. After setting the Internet abuzz with a blueprint for a functional 3D-printable firearm, Cody Wilson recently signed a book deal to chronicle his journey, and in his spare time the “dark web” aficionado is placing the finishing touches on a Bitcoin anonymizer project. Wilson, 25, has been busy to say the least. Last spring he uploaded the blueprint for his 3D-printable gun dubbed the Liberator, and within two days the file was downloaded over 100,000 times. He pitched his story as a non-fiction book and...