So who believes this isn't as important a component of Iran's nuclear weapons program as the scientists and technicians?
The U.N. nuclear watchdog chief said on Monday talks with Iran have been "going around in circles" - unusually blunt criticism pointing to rising tension over suspected nuclear arms research by Tehran that has increased fears of a new Middle East war.
Yukiya Amano, director general of the International Atomic Energy Agency, vented growing frustration at the lack of results in getting Iran to address suspicions of military dimensions to its atomic energy program. Tehran denies the accusations.
Everything keeps going in circles yet Iran still gets closer and closer to nuclear weapons.
