Watch TODAY’s national investigative correspondent Jeff Rossen expose how simple it is for criminals, and even terrorists to purchase deadly weapons in public places – with no questions asked.

This shocking undercover investigation shows just how easy it is for for anyone to buy dangerous guns, including a 50-caliber weapon so powerful it could take down a helicopter.

Remember, at gun stores, background checks are required, but online – nothing. Believe it or not, in most states it’s completely legal.

To watch the report click here

By Jeff Rossen
TODAY
updated 2/9/2012