Who is attacking Wikileaks anonymously?

There has been a lot of breathless press about Anonymous, the hacker collective that has been attacking the various companies (Amazon, Paypal, Visa et al) that have dumped Wikileaks off their services. They have been called everything from terrorists to heroes, with most shades in between. News channels have fallen over themselves to scoop views on what they are doing (rather interestingly for an "opposing force" they seem to be showing their strategy publically.)

Now there has been an arrest of a suspected helper (a spotty youth in Den Haag).....

Bu there is something being forgotten in all this - before Anonymous even started, Wikileaks came under a reportedly large (or not so large?) DDoS attack itself, and this has continued with Anonymous now being attacked itself. But to my surprise (hah ) I find the mainstream media are keeping (almost - good on you BBC) absolutely quiet about:

(i) Who was (is) doing this?

(ii) Should these people be hunted and prosecuted in the same way as Anonymous?

It is noticeable that so far there seems to have been very little calling from any of the people who want to hang, draw and quarter Anonymii members to do the same for these people, nor do we see quite the same level of invective from the Official Sources.

And we have to ask ourselves - who do we think is doing it? Traditional Hackers - don't think so, they have by and large sided with Wikileaks. Then there are Chinese, Iranian and Russian Cyberwarriors (the usual suspects in Western DDoS scares) - unlikely, Wikileaks has (so far) helped more than hindered them. Or the Cybercriminals? - hardly, unless Wikileaks releases credit card numbers, its pretty slim pickings.

So who else, then, has the ability, resource and the motivation to keep an assault going on Wikileaks?

Answers on a postcard......