Do you want to know whether or not US officials have ever forced a company to decrypt data to aid in an investigation? So does the Electronic Frontier Foundation. The civil liberties group has sued the Department of Justice to make it reveal whether or not it has ever used secret Foreign Intelligence Surveillance Court orders to make companies decrypt communications. The EFF had used a standard Freedom of Information Act request beforehand, but didn't get anything. FISC says that what "potentially responsive" documents it found are exempt from disclosure, since they were created before the USA Freedom Act took effect.