I spotted a very weird Google Webmaster Help thread that I honestly do not fully understand. If you search for URLs containing the words "Save Us From Berlusconi" in that order, in Google, you will find almost 4 million matches.
The webmaster who reported the issue, didn't first realize that this was beyond his web site. He wanted to know why GoogleBot was crawling all his URLs with adding on /?q=Save+Us+From+Berlusconi to the end of the URL. Some sites do not 404 or 301 redirect URLs that add on variables to the end of the URL, so he was suggested to do so in this case.
But the question goes beyond just a single web site. Is this some form of political message being sent around by those who do not like the curent Prime Minister of Italy? Anyone want to venture a guess?
Forum discussion at Google Webmaster Help.