I don't think this will affect Swedish domestic politics, more than that people will dislike the politically correct May-68 elite even more, now that their first bannerman turned out to have had secret contacts with the KGB. A lot of people are probably saying "told you so" right now. Peak oil is not an energy crisis. It is a liquid fuel crisis.
Jan Guillou + KGB
in the Google search window and 77,100 'hits' come back.
Don't know enough background to provide links to qualified, informative, information.