ARE YOUR TWITTERS LEAKING ?

I read that the US Government, that bastion of civil rights and liberties, is demanding access to the names, addresses, telephone numbers, connection records and payment details of numerous people connected with WIKILEAKS who have used the TWITTER website.

Now, while the Yanks may have some case for asking for the records of Julian Assange, how can they possibly justify asking for the records of others against whom no charges have been made ? Even Mr Assange has, as yet, not been charged with any offence by the US authorities, as far as I am aware, and one wonders what grounds the Government has for asking for what is his personal information. This seems to be a monumental case of 'fishing' for anything that might be vaguely incriminating or helpful to the Government in its attempts to close his annoying website.