The federal government has no right determining who is a dangerous individual. If they did have the ability to do this, they could take guns away from any one they wanted. What they could do is enforce the laws on the books. If a person is deemed a danger to himself or others by a licensed dr, then no gun. If they have ever committed a violent crime such as armed robbery or threatening another person they get no gun. If gun violence is to end, go after the illegal guns that are the cause of most mass shootings.