Not really because I assume most online services will bend over to such an "Order". In the end whatever is promised can be overruled by administration. Online privacy and agreements are not worth much then. Would be cool if they simply said "Nope" though. Wikileaks account is not closed so expect more peace disturbing statements.
But I don't get why the want the list, everything is open and can be viewed by anyone. They have probably stumbled across accounts which are protected and went hmmmm, this is supicious!