What the issue should be is what is happening to the soldier who stole the 'confidential' information. The 'millions of US government workers had access to the info, so it was in the public domain' argument doesn't wash with me - If you worked for a large multinational for example, you would be confidentially bound not to disclose 'company secrets' to another multinational.
Its also worth pointing out that while some of the documents released are relatively harmless, others are stirring shit to the point of breaking diplomatic relations.
Baltic states:
Two world powers, just starting to have better relations with each other & a confidential document is released saying NATO/US is prepared to defend former USSR territory. Russians are paranoid enough as it is without out this shit plastered over the news.