Handgun training
People who do not approve of firearms or are neutral in that they neither own nor oppose ownership seldom take courses in carrying concealed weapons. In that event, they would be foolish to start to carry; they would not know how or when to effectively use the weapon.
So too, as Robert Kaplan argues, are nations foolish to wield armies composed of untrained soldiers, for undefined purposes and without a comprehensive evaluation of the consequences. In this book he examines some of the great warrior philosophers and how their thoughts apply to today's world. An alternative title could have been "How to Use Military Force Effectively". Good mind food for the voting class.