"Do they need that big of Guns"

One of the first things I noticed about Paris is the military police, or whatever you want to call them. They walk around with large automatic weapons similar to the police in Mexico, trying to install fear in visitors and local Perisians. Could you imagine if police in New York City walked around with big automatic weapons, I think the city would destroy its self. I guess this is just how they do it, but it does make you wonder.