Leaking US Government data could seen as a threat to US interests. Now leaking business information could be seen a threat to many interests.
Now It's easy to play the shift blame game if anything happened to the people behind Wikileaks. In the beginning it would have been easy to assume it was the US government taking convert action. Now who knows how many ways this could be twisted to hide the actions of any acting party.
Governments love secrets. Corporations love money.
If your going to play information warfare you might want to do a little bit of risk assessment.