Sorry.google.com is the page Google serves you (or an application) when you fail to answer it's human-verification question. Google has instituted this new policy - randomly checking to see if queries submitted to it (ie. searches) are done by human beings (as opposed to software applications). The purpose of this is two-fold. On the one hand, blocking the search query and redirecting the user to sorry.google.com alerts the user to potential spyware on their PC; on the other hand, it prevents users from utilizing software to query the Google search engine.
