The US Department of Justice subpoena (PDF link) in the Twitter Wikileaks case asks for the following information:

1. Subscriber names, user names, screen names or other identities
2. mailing addresses, residential addresses, business addresses, e-mail addresses, and other contact information
3. connection records, or records of session times and durations
4. length of service (including start dates) and types of service utilised
5. telephone or instrument number or other subscriber information or identity including any temporarily assigned network address
6. means and source of payment for such service (including any credit card or bank account number) and billing records

I’m not sure they realise that the majority of this this information is publicly available in a profile – they even asked for the information by supplying the user name in the first place. It’s also a free service, so billing information…? Mailing Address? Looks suspiciously to me like they have a template request for information to ISPs they’ve just sent Twitter without thinking about it. They do go on, with the following in part B that looks like a template request to an email or facebook-style service provider:

1. records of user activity for any connections made to or from the Account, including the date, time, length and method of connections, data transfer volume, user name and source and destination Internet Protocol address(es)
2. non-content information associated with the contents of any communication or file stored by or for the account(s), such as the source and destination email addresses and IP addresses
3. correspondence and notes of records related to the account(s)

Other than IP address (Which seems to be requested twice – are 1 and 2 not the same?) I’m not even sure what useful data Twitter could possibly give them that’s not already public. Given that at least two of the people mentioned are known to not be in the US (Julian Assange is one, another is an Icelandic MP) I don’t see how IP addresses will help them.

I wonder if Twitters entire response will just be a printout of the users public timeline and profile information, just with the (Non-US) IP addresses added. How this will help the US DoJ I don’t know.