I agree it would be a monumental victory against secret demands, but if a non-sysadmin layman read that rally.org page he might believe that the result that all

I agree it would be a monumental victory against secret demands, but if a non-sysadmin layman read that rally.org page he might believe that the result that all e-mails would be 'safe' forever. You make an interesting point about encryption keys; it is unconstitutional to demand that an individual hand-over his keys in a speculative manner, but is not considered self-incrimination if the prosecutor knows that the relevant document is encrypted. for example, if the individual boasts that 'The Man can't read my encrypted tax evasion plan'. But I have no idea how that reads-across to a corporation.