Iranian President Mahmoud Ahmadinejad addresses the staff next
to a poster with a picture of late Ayatollah Khomeini, during a
tour of Tehran's research reactor centre in northern Tehran,
Iran, Wednesday Feb. 15, 2012. (AP Photo/Iranian President's
Office) "How Close is Iran to Exploding its First Nuclear Bomb?"
Op-Ed, Scientific American May 24, 2012 Author: Graham Allison,
Director, Belfer Center for Science and International Affairs;
Douglas Dillon Professor of Government, Harvard Kennedy School
Belfer Center Director Graham Allison writes in Scientific
American that while it is unclear whether Iran has decided to
develop a nuclear weapon, it has over the past decade been
"cautiously, but steadily, putting in place all the elements it
needs to construct a nuclear weapon in short order." Allison
argues that the best way to prevent Iran from developing a
nuclear bomb might be to "aggressively explore the offer made by
Iranís president Mahmoud Ahmadinejad last fall to end all
enrichment beyond LEU in exchange