Powerful, rapid-fire assault rifles like the AK-47s used in Third World conflicts are increasingly being used in American street fights.
And many cities, from Miami to Minneapolis to Farmington, have issued these semiautomatic rifles to patrol officers to protect themselves and the public.
"We're in an arms race," said Chaska Police Chief Scott Knight, who is chairman of the firearms committee of the International Association of Chiefs of Police. He has ordered 10 AR-15 assault rifles for his officers who, like those elsewhere, have encountered more criminals with high-powered weapons.
Government figures show a marked increase in AK-type weapons traced after they were seized or connected to a crime.
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATFE) traced the weapons and entered them into the agency's database. The Associated Press obtained the figures through public records requests.
Police SWAT teams were the first equipped with assault rifles. Patrol officers started getting them after the country watched in horror in 1997 as televised footage showed Los Angeles officers fleeing from two bank robbers spraying bullets from assault rifles at a North Hollywood bank. Police handgun shots bounced off the robbers' body armor. Seven civilians and 11 officers were wounded.
More recently, a Miami-Dade, Fla., officer was killed during a traffic stop last September and three other officers wounded by a driver firing an assault rifle. The cops had only handguns.
Last weekend Chaska police stopped a driver who had illegal drugs, a .45-caliber semiautomatic handgun under his seat and a bulletproof vest in his trunk, Knight said. In another recent example, Chaska officers responding to a domestic assault call found an assault rifle in the hands of a man high on drugs. And about three years ago, they encountered a gang member with a MAC-10 handheld submachine gun.