This from facebook. It says something pretty close to my own thought in the matter.
The Richard Dawkins Foundation for Reason and Science (Official)
8 hrs ·
Though the number of people who identify as atheists has risen in recent years, atheists still are viewed as untrustworthy or frightening by many Americans. Now, new research might offer an explanation, writes LiveScience’s Stephanie Pappas — atheists can trigger death-related thoughts, which can cause people to cling even more tightly to their religious values:
http://ow.ly/OY61Q