Questions about gun control

How many guns are in the U. S?

Is the U. S gun homicide rate really that high?

Are there countries with as many guns as the U. S but less crime?

What's a semi-automatic gun?

How often do gun owners actually prevent crimes?

How often are people killed by their own guns?

Do states with strict gun control laws have less gun violence?

Has American public opinion shifted on gun control?