What are the arguments against background checks at gun shows and internet purchases. Is the NRA too powerful?

The majority of Americans favor universal background checks as does Congress. A gun manufacturer in Connecticut recently announced no more high round magazine production by his company. My thoughts are there will be some positive steps passed in spite of the gun lobby/NRA.

The argument against universal background checks is being promoted by the NRA, the spokesperson and lobbying arm for gun and ammo manufacturers. It is that any controls at all - even the most rudimentary and common sense such as a background check - limits their market, plain and simple. They have no problem with criminals and the mentally ill buying guns. A sale is a sale.

what's the use of background checks SOME of the time? Criminals who want guns, youth who want guns, nuts who want guns, can just go to gun shows and get what they want without any checks. It's ridiculous.

Truly ridiculous is our President whining about this or that background check when there are zillions of guns on the street, bought and sold by people who don't care about all those piddly laws our Congress (who's Congress would that be?) writes. He's laboring overtime to make guns more difficult to obtain while two studies have shown the death of his ignorance: background checks have no effect on crime but concealed carry laws DO. What President Obama should be working on is mental health treatment and lock-up for the mentally ill in the U.S. as THAT was the real cause of the tragedy: mentally ill guy with access to weapons. Criminy, Dylan Klebold had extra clips on him!

doesn't the Constitution at least imply that citizens having guns are for the purpose of a well-regulated militia?

Yes, the wild west is litigious--forgot that.

He'd probably feel he had the right to have the disturbed person's family make him independently wealthy.

The spokesman for the NRA, who we've seen on TV ever since Newtown, gets paid millions of dollars to bleat his propaganda. Wonder how he would feel if it were his grandchild butchered by several rounds by a mentally disturbed person?

remember, the NRA reading of the second amendment goes as follows: "LALALALALALALALALALA the right to keep and bear arms shall not be infringed" their position is that ANYTHING that gets in the way of a person being able to conveniently buy a gun is more evil than accidentally selling a gun to a person who has lost that right.