I have not seen the deployment of what you describe in "typical" law enforcement situations. What is a typical situation? I do think that law enforcement should be trained and equipped for modern day situations that law enforcement is finding themselves in, particularly at a federal level. I don't believe that a tank or APC is necessary for basic law enforcement, but I don't harbor any resentment for an officer wearing tactical body armor or being certified on a weapon larger than a 9mm when serving a warrant in a high risk situation or affecting an arrest where the risk of the use of deadly force is high.