Certainly most of the people who read here are astute enough to realize that many of the email forwards we receive each day are simply untrue. I have written about this before, as have some of you.
Here's an example.
An old school friend of mine sends this stuff to me on a regular basis. He, and the many veterans like him, get all riled up at the thought of anything that demeans the military or God and Country. And they should- when the information is factual - but I rankle when it is false.
I'm unclear what the motivation is behind email forwards like this one, but I've read it is a way for the perpetrator to get multiple email addresses, which are then used for spamming purposes. There could be something more nefarious going on (like viruses or trojans), but I don't know how it works. Unfortunately, these people also take advantage of superstitious and devout people, by sending forwards that warn of dire consequences if you don't send it to ten people immediately (or promise something funny on the screen later).
It is SO easy to go to www.snopes.com and search for key words. In checking this one, I typed in ACLU + cross-shaped headstones, and was immediately taken to the page that shows it is untrue.
Telling people about it isn't always a solution, however. It seems to me that the people who get all riled up by this sort of thing are not really interested in whether it is true or not - they just like stirring up a tempest.