From our friends at the US Campaign to Ban Landmines:

President Obama will sign a law today that will make permanent a ban on nearly all cluster bomb exports from the United States. Congress included the export ban in an omnibus budget bill that passed the Senate last night. This provision will move the U.S. one step closer to the position of the nearly 100 nations--including our closest NATO allies--that signed a treaty banning cluster munitions in December.

The legislation states that cluster munitions can only be exported if they leave behind less than one percent of their submunitions as duds, and if the receiving country agrees that cluster munitions "will not be used where civilians are known to be present." Only a very tiny fraction of the cluster munitions in the U.S. arsenal meet the one percent standard. This export ban was first enacted in a similar budget bill in December 2007, but that law mandated it for only one year.

U.S.-exported cluster bombs were most recently used by Israel in Southern Lebanon, where dud rates were reportedly as high as 40 percent; hundreds of civilians and deminers have been killed or maimed since the fighting ended in 2006.