A billet of highly enriched uranium (Photo: Wikipedia Commons)
The nuclear industry continues to stir controversy in Iran, where many residents believe the country is on the brink of creating a nuclear bomb.
Iranian activists published an open letter to their government this week, calling on it to suspend uranium enrichment.
The text of the letter warned that the country's nuclear ambitions would "set the stage for war" and that the people of Iran would "have to pay the price."
Iranian journalist Nazila Fathi says the letter reflects the growing anxiety in Iran about the possibility of a military attack.