Gun violence is frequent, and the United States has not only made no progress on the issue of "gun control", but has even regressed.

  According to a recent report by the US "Capitol Hill", the North Carolina police plan to equip schools with AR-15 rifles, which are the murder weapon in many mass shootings in the United States.

In the May 24 shooting at Rob Elementary School in Uvalde, Texas, the suspect used an AR-15 rifle to kill 19 children and two teachers.

Therefore, the practice of many North Carolina schools equipped with AR-15 has raised a lot of doubts.

  Madison County Sheriff Buddy Harwood in North Carolina said the plan is to equip police officers at six schools in the county with AR-15 rifles to "control violence with violence."

  Madison County Sheriff Buddy Harwood, North Carolina: If someone comes to school and commits a crime, I want to give all school police the ability to use violence against violence.

  Harwood's remarks immediately raised questions.

  Dorothy Escola, professor at UNC-Chapel Hill: We say "enhanced school security," [but] there are going to be accidents with these guns.

  Alison Anderman, a senior adviser at the Giffords Law Center for the Prevention of Gun Violence, criticized it as the wrong way to curb gun violence in the United States.

"Where there are more guns, there is more gun violence."

  An alias for the AR-15 rifle is "Blood Gun".

This semi-automatic rifle is not only highly accurate, but also does not need to be reloaded frequently, and has a huge number of possessions in the United States.

The name of the AR-15 rifle has appeared many times in the many mass shootings in the United States.

  Among them, in the December 2012 shooting at Sandy Hook Elementary School in Connecticut, the gunman used an AR-15 rifle.

The shooting that shocked the nation 10 years ago killed 20 children, six faculty members and left relatives with intractable wounds.