The short answer, to my knowledge, would be no. From the public library in which I work, I had no trouble accessing the wikileaks homepage or the documents therein on Saturday, Sept. 29 2012.

The Library of Congress has blocked access to Wikileaks, because as a Federal agency they feel bound to comply with the classification of documents, even if they have been (illegally) made public. As far as I know, no public libraries have followed suit.

You can find more information on libraries and Wikileaks on the ALA website in the emerging issues section. It is worth noting that a documentary on Wikileaks was featured at this year's ALA convention.

I look forward to being corrected by my more aware colleagues.