Mother Jones, "10 Pro-Gun Myths, Shot Down".
They make some valid points. Some are debatable, like "For every time a gun is used in self-defense in the home, there are 7 assaults or murders, 11 suicide attempts, and 4 accidents involving guns in or around a home."
There is no possible way to know how many times guns are used for self defense in the home, only reported cases, and most are not.
Some seem valid, like "A Philadelphia study found that the odds of an assault victim being shot were 4.5 times greater if he carried a gun. His odds of being killed were 4.2 times greater."
Easy to believe many people get a gun, and with no training or experience, feel suddenly feel invincible like in the movies.