The extent of the black market is unknown, but a steady stream of attempted sales of radioactive materials in recent years suggests smugglers have sometimes crossed borders undetected. Since the formation of a special nuclear police unit in 2005 with U.S. help and funding, 15 investigations have been launched in Georgia and dozens of people arrested.
Six of the investigations were disclosed publicly for the first time to The Associated Press by Georgian authorities. Officials with the U.S. government and the International Atomic Energy Agency declined to comment on the individual investigations, but President Barack Obama noted in a speech earlier this year that countries like Georgia and Moldova have seized highly enriched uranium from smugglers. An IAEA official, who spoke anonymously because he was not authorized to comment, said the agency is concerned smuggling is still occurring in Georgia. - Yahoo! News