How easy is it to steal a radioactive source?
Several levels of security surround radioactive sources. Highly active sources used in hospitals in radiotherapy are usually encased in substantial shielding extremely difficult to remove and impossible to do so covertly. Handling such sources would represent a significant risk to the potential thief. Smaller sources of radioactive material are theoretically more vulnerable, but covert misappropriation would still be extremely difficult. The potential use as a health threat would be much smaller.
