Why are the bees dying?

As old as this news is, I did some research today to fill me in and it turns out this has been going on since early 2007. The case is called Colony Collapse Disorder. It is phenomenon in which large numbers of worker bees suddenly disappear or die. Though we have not seen a decline in supply of honey on our shelves, we have seen a decline of income for that particular industry. Researchers up to today still can not pin point exactly what is causing it but speculations suggest a lowered immune systems for bees. As of now all the bee workers can do is hope for a remission of CCD.