U.S. gave Iran secret exemptions to get the infamous nuclear deal done

The White House official said the administration had briefed Congress "frequently and comprehensively" on the joint commission's work. Democratic Senator Bob Menendez, a leading critic of the Iran deal and a senior member of the Senate Foreign Relations Committee, told Reuters in an email: "I was not aware nor did I receive any briefing (on the exemptions).” As part of the concessions that allowed Iran to exceed uranium limits, the joint commission agreed to exempt unknown quantities of 3.5 percent LEU contained in liquid, solid and sludge wastes stored at Iranian nuclear facilities, according to the report. The agreement restricts Iran to stockpiling only 300 kg of 3.5 percent LEU. The commission approved a second exemption for an unknown quantity of near 20 percent LEU in "lab contaminant" that was determined to be unrecoverable, the report said. The nuclear agreement requires Iran to fabricate all such LEU into research reactor fuel.

If the total amount of excess LEU Iran possesses is unknown, it is impossible to know how much weapons-grade uranium it could yield, experts said. The draft report said the joint commission also agreed to allow Iran to keep operating 19 radiation containment chambers larger than the accord set. These so-called "hot cells" are used for handling radioactive material but can be "misused for secret, mostly small-scale plutonium separation efforts," said the report. Plutonium is another nuclear weapons fuel.