In the world, there are loads of different laws in every country, some more important than others.
These different laws are often picked out by the government of each country. One of the most controversial laws is the gun law in America.
People who are for increasing gun control in the United States believe that when limiting access to guns will save lives.
They believe that homicides performed with guns will decrease. It would reduce mass killings including school shootings.
Those who are for having easy access to guns believe that they can easier defend themselves against armed criminals and trespassers.
It would be easier to defend themselves and children in a school if a school shooter were to appear in the middle of class.