Via The Washington Post: Stolen cobalt-60 found in Mexico; thieves may be doomed. After describing the theft and discovery of the truck carrying the cobalt-60, the report continues:
The drivers of the cargo truck were sleeping at a gas station this week when gunmen assaulted them and stole their truck. Mexican nuclear safety officials said they believed the carjackers did not know what they were stealing and that they may die from exposure to the radioactive material.
The IAEA said in its statement that it “would probably be fatal to be close to this amount of unshielded radioactive material for a period in the range of a few minutes to an hour.” It is unclear how long the material was handled by the carjackers or others who found it later.
Mexican officials said members of one family who came across the container were checked for contamination but appeared to be fine.