I greatly appreciate the opportunity to debate and respond to Selwyn Duke's piece, which makes many very reasonable points. Its biggest deficiency is that it never actually proposes measures --whether specific new regulations or repeal of specific existing ones -- that would improve the current system. Instead, Mr. Duke says he would scale back gun laws from 22,000 to 5,000, two arbitrary numbers, neither of which bear any correlation to smart policy. Before discussing potential policy responses, let me say that Mr. Duke is quite right that thousands of gun laws, unsurprisingly, did not eliminate crime (I am unaware of...