Today it was announced that the United State’s largest nuclear bomb at 9 megatons, the B53, is being disassembled.

President of the Ploughshares Fund, Joseph Cirincione follows up this summer’s piece in The Atlantic by reporting on Congressman Edward J. Markey’s letter to the Super Committee, which calls for massive cuts in the U.S. nuclear budget.

And read Markey’s letter, signed by 65 other members of Congress, here.