Here's how it works: An Internet service provider, university or corporation could choose to record all activities of people using the network. The data would be encrypted, with the only key able to unlock the information kept by the vault. An FBI agent who wanted to access the information would obtain a search order that was digitally signed by a judge. The vault would recognize that signature and divulge only the information specified by the court. There would be no chance -- assuming the vault was programmed properly -- for a fishing expedition. This is a fairly straight forward idea that makes a lot of sense. | 
