Reports that the main effect of a radiological weapon would most likely be psychological rather than carcinogenic. From the American Institute of Physics.

Transcript of online discussion about the possible terrorist use and consequences of use of radiological "dirty" bombs.

BBC News Online article analysing the threat from "dirty bombs".

Asks how dangerous a radiological weapon would really be in practice.

Asks whether the United States could cope with a radiological attack. From CBS News.

Reports that the explosion of a radiological bomb in downtown Washington could have a devastating effect on the city and Federal Government. From the Washington Post.

Article from TIME magazine queries just how realistic is the threat from radiological bombs.

Article from CBS News describing how a "dirty" radiological bomb works.

Assesses the threat of radiological bombs and the likely scenarios for their use by terrorists. From the Arizona Daily Star.

Article from the Center for Defense Information asks whether the perpetrators of the September 11 horrors could strike again, this time with nuclear weapons.

Highlights the danger posed by abandoned radioactive generators in the Soviet Union. From Radio Free Europe/Radio Liberty.