U.S. and IAEA officials say they believe North Korea procured the P-2-style centrifuge designs from A.Q Khan following a barter trade conducted in the 1990s.
"One has to assume that Iran either has the P-2 centrifuge from North Korea, or could get it very easily, " said Simon Henderson, a proliferation expert at the Washington Institute for Near East Policy.
"The president indicated that we were very interested in finding out more about North Korea's interest in perhaps gaining access to commercial launching facilities outside North Korea in return for ending their missile programme, " said P.