The Secret Science Club meets once a month, drawing lofty speakers and large numbers of young people, who yearn to discuss sci-tech issues in an informal setting.
Campaigners are often seen as a threat to national security and influenced by Western interests.
Defense Secretary Gates said Tehran was not close to having a bomb. A new report in which senior advisers to Obama participated urges further sanctions.
Camp Ashraf, which came under Iraqi control Jan. 1, is home to militants who Iran and Iraq say should be expelled. The MKO is on a US list of terrorist groups.
A vivid, opinionated journey through the world of Islam.