Exemplary story of how one or two individuals truly can make a big difference in global affairs.    These guys truly deserve the Nobel Peace prize:

...Last week, the two Afghan scientists, Mohammed Jan Naziri, a professor of applied nuclear physics, and Jora Mohammed Korbani, a nuclear physics professor, revealed how they had concealed their knowledge from the Taliban.
     They said that in 1996, when the Taliban militia first entered Kabul, they and some other colleagues on the faculty had gathered all the radioactive sources and instruments they could find from the university's laboratories and stored them in the nuclear science faculty's basement.
     Because they had no radiometers and no protective clothing, the scientists moved the items as carefully as they could, storing them between sheets of lead. They then tore up their research documents and papers on atomic physics.

In addition to hiding more than enough nuke material to create dirty bombs, the scientists deliberately made the moral decision to stay unemployed:

..."They said to me, 'We know you're working for the faculty of nuclear science, and we need you,'" Mr. Korbani said. "They offered me a lot of money and said that they wanted me to find 100 other nuclear scientists and technicians and come to Karachi."
     Mr. Korbani was then asked to write a paper on atomic energy.
     "They told me, 'Pakistan has a very powerful atomic bomb, and we are very keen on bringing such a power to Afghanistan,'" he said. The men told him that people in Pakistan's tribal areas would pay for the program. "They kept calling me, but I never returned [the calls]. I knew it was too dangerous."