True, and completely accurate. But prosecution is generally based upon harm, and generally the damage is done by the initial media exposure. It is a hard argument to sustain with regards to secondary and beyond republications of the same information, especially with the global reach of modern internet communications.
Again, to be clear, I consider wikileaks to represent crimes, and the republication of information from those crimes to represent ethical problems whether or not prosecution is imminent.
FAS has an informative .pdf on the subject
http://www.fas.org/sgp/crs/secrecy/R41404-101810.pdf