In Balko's book, Rise of the Warrior Cop, http://www.amazon.com/Rise-Warrior-Cop-Militarization-Americ...
he talks about various aspects and how those incidents were relatively rare, and militarization has not been happening all that much because of outgunning, but rather government incentives for the War on Drugs and measures designed to have closer coordination between the military and police forces.
Never forget Radley Balko on this topic, and he's got a new book out, Rise of the Warrior Cop: The Militarization of America's Police Forces (http://www.amazon.com/Rise-Warrior-Cop-Militarization-Americ...) as well as an old, hard/$$$ to find one, *Overkill: The Rise of Paramilitary Police Raids in America (http://www.amazon.com/Overkill-Paramilitary-Police-Raids-Ame...).
he talks about various aspects and how those incidents were relatively rare, and militarization has not been happening all that much because of outgunning, but rather government incentives for the War on Drugs and measures designed to have closer coordination between the military and police forces.
Makes for very depressing reading.