Gun control
There is a strong "gun lobby" in the United States.  It is led by the National Rifle Association of America (NRA), which supports the right to own guns.  They want it to be fairly easy to get a gun.  Other groups, such as the Brady Campaign, want guns to be hard to get because they believe that guns cause violence, injury and death.  Some states have very strict gun laws, but others, such as Arizona, Utah, Idaho and Mississippi, do not.