John -- I agree with your article and you are about 99% correct. I recall an incident many years ago when an attempted bank robbery in southern California went awry. The bad guys were clad in face masks, body armour and were using fully-automatic AK-47 rifles. They walked up and down the street spraying the outgunned police with automatic fire. Eventually SWAT help arrived and on the scene police were able to secure AR-15 semi-automatic weapons from local sporting good stores. The bad guys were finally taken out.