Some folks hold that the field of battle is hallowed ground (and I am one of them). I like Wal-mart but there are other, more suitable locations.
I too believe that battlefields are hallowed ground. I have been to the earth works in Richmond, VA and there is nothing there but earth mounds where there were huge battles. You Can’t even think to walk there...the feeling is so strong of the deaths of many. The idea of building anything on a site like that is absolutely abhorrent.