This can be used as a side step to our 2nd amendment. What good are the guns that we are allowed to buy going to do, if we need them, against a government who even has their police equipped with military equipment? I don't know if that is the intention, or not, but it could definitely be used that way in the future.
Besides, why do the police forces need military equipment? If we need military the National Guard is available to be called up when necessary. Just more government power growth that is not good.