While I realize Atheism in its purest form is belief in no god. I think this definition should be expanded.
In my view point the majority of people, whether they admit it or not are atheists. That is they....1. Anyone who is non religious, who thinks they are agnostic is still a nonbeliever. A believer puts religion as a priority in their life. Since agnostics can not define god, they are leading a godless lifestyle - horray
2. this one may get me in trouble but religion should be defined as that which you believe and follow. If you have not seen the inside of church etc, and god is not your focus you are in essence a closeted atheists.
I know that #2 is a bit of stretch, but this group is the first step towards atheism.