My opinion is that people should be ALLOWED to say "Under God", as much as they should be allowed to say instead something like:
"Under Buddha"
"Under Allah"
"Under Odin"
"Under Freya"
"Under Isis"
"Under Mithras"
"Under Ceridwen"
"Under Lugh"
...
But never should be FORCED to do any of it. THAT is freedom of religion.
Yeah, or they don't have to say it...but, sometimes people don't realize that...:(