Can you understand why the Congress, most states and most cities refuse to pass legislation requiring the registration and licensing of any and all guns? For the life of me, I can't. We must register our cars and be licensed to drive. In many places we must get licenses for dogs and even bicycles. Being required to register firearms and show the competence and capacity to handle them hardly seems unreasonable, hardly seems an infringement of freedom. What is it that blocks such legislation? Why do they block it? How are they able to block it?