The difference is painfully clear: here in freedom-loving America, a man took a gun and killed 20 children and six adults, while in communist China, a man who was apparently every bit as deranged as his comrade-in-madness in Connecticut was not able to get a gun, and so used a knife; and no one died. His actions are still shocking and inexcusable, but 22 children there are still alive today, whereas 20 children here in America are dead. The only difference of note was that one man had easy access to firearms, and the other did not.
Anyone who supports getting rid of all guns is living in a fantasy land; gun-totin' Pandora is out of her box and she's never getting back in. But we can try to minimize the violence and mitigate the damage done by those who seem to hold guns to be some sort of holy religious icon. All firearms must be registered, all owners must be licensed, and all owners must be responsible for what happens with their firearms. All of these already apply to vehicle ownership anyway, but we can safely assume that nothing's going to happen; the gun lobby in Washington is still too powerful, too strong. And so we will learn nothing as a nation, and more innocent people will die.
It's as if Thomas Jefferson's quote is incomplete and needs to be rewritten: "The tree of Second Amendment liberty must be refreshed from time to time with the blood of patriots and tyrants and innocent children," for if tragedies such as those that happened today cannot serve as object lessons that easy access to firearms is nothing more than a recipe for horror and grave injustice, then what indeed is the meaning of the blood shed by those 20 innocent children in that elementary school in Newtown, Connecticut?