The 2,000 working centrifuges for processing uranium adaptable to the fueling of nuclear weapons, which North Korea showed off to visiting US scientist Prof. Siegried Hecker of Stanford University Nov. 12, told US and Western intelligence that Pyongyang was shifting its weapons program from plutonium to enriched uranium. Washington responded it was still open to talks. Iran may well follow North Korea's brazen example and go stunningly public with its forbidden nuclear projects.