Senate Majority Leader Harry Reid (D-Nev.) on Tuesday introduced a bill that would require background checks to be run on anyone buying explosive powder, a reaction to last week's Boston Marathon bombing.

Reid introduced the bill, S. 792, for Sen. Frank Lautenberg (D-N.J.), who has been out sick for much of the year. But in a press statement, Lautenberg said the Boston bombing shows that background checks are needed for explosive materials.

Under current law, people can buy up to 50 pounds of explosive "black powder" with no background check, and can buy unlimited amounts of other explosive powders, such as "black powder substitute" and "smokeless powder."

Lautenberg's bill would require a background check for the purchase of any of these powders.

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This isn't about stopping more home made bombs. This is a round about gun grab. If they can't pass laws on the Guns them selves, they will go after the ammo. All of which need "Explosive Powders" to make the bullets. From here you can start banning particular powders as "Too Dangerous" in the public hands.