Keep in mind, this isn't Google doing it, it's what people search for the most. The more that link gets around, the more people try out those searches, the more it thinks people are looking for that, the more often it will return it.
A Google spokesman explained that the weird absence of results is just a software problem: "This is in fact a bug and we're working to fix it as quickly as we can." But the company would not respond to requests for clarification.
An intriguing corollary: Google offers search suggestions for future tense queries as well. Ask "Christianity will" and Google suggests "Christianity will end, it will disappear," and "Christianity will end." Ask the same about Islam and Google notes that "Islam will dominate the world" and "Islam will destroy Europe."
It's just weird..
http://www.foxnews.com/scitech/2010/01/08/google-censoring-islam/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%253A+foxnews%252Fscitech+%2528Text+-+SciTech%2529