That sounds like a bit of sensationalism going on there, at the least. I doubt very much that Google could get away with planting a virus in there http responses, javascript, etc. without a huge uproar from the entire computer security industry. Not to mention, that would be a text book computer crime and not even Google could avoid prosecution. And finally, why would they need to do this? They have erected the most advanced human intelligence operation in the history of the world (all 1000's of years of history) and would not risk that operation for such a petty result.
People should just focus on the services that they LEGALLY run in an ILLEGAL fashion (i.e., anti-trust violations, constitutional rights violations, etc.).