Google's competitors seem to have alleged that Google are shutting them out of searches and that discriminates against them, and are starting legal action against them, presumably as a competition/monopoly problem, across this side of the Pond. It said in today's newspaper that Obama suggested that was out of jealousy because American internet companies were so much more successful than European ones.
Maybe the litigants think that European courts are more likely to be sympathetic.
If that isn't enough to make a few snakes hiss, I don't know what is
Google was the second-largest corporate source of campaign donations to President Barack Obama’s re-election effort.
Probably doesn't have anything to do with it.
Edit: the direct link requires a login, but if you Google (ironically) "wsj google antitrust" it's the "Inside the U.S. Antitrust Probe of Google" hit. The full article is available that way.
Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life.