From the Wikileak site

NOTE: At the moment WikiLeaks is not accepting new submissions due to re-engineering improvements the site to make it both more secure and more user-friendly. Since we are not currently accepting submissions during the re-engineering, we have also temporarily closed our online chat support for how to make a submission. We anticipate reopening the electronic drop box and live chat support in the near future.

Heh.
An assignment for our white hat hackers… Spike the Wikileaks servers as the go online.