I first came across cryptography pioneer David Chaum about a decade ago, during the debates about online voting. Many in the technology world were insisting that such things were impossible to do safely, but Chaum insisted he had come up with a way to do online voting safely (he‘d also tried to do electronic money, DigiCash… unsuccessfully). Many people disagreed with Chaum and it led to some fairly epic discussions. It appears that Chaum is again making moves that are making many of his colleagues angry: specifically creating a backdoored encryption system.