12/11/13: The BBC reports authorities in Mexico have recovered dangerous radioactive material which was stolen last week. Experts from the National Nuclear Security Commission used a remote-controlled robot to place the radioactive waste into a container. The material, 60g (2.1oz) of cobalt-60 used for cancer treatment, was stolen while it was being taken from a hospital to a waste storage facility. Six people have been arrested in connection with the theft. The six were taken to hospital with signs of radiation exposure shortly after their arrest, but were later given the all clear by doctors. One of the suspects was later released by police. They are believed to have been oblivious to the material inside the truck, which could potentially have been used to make a "dirty bomb" - an explosive device that can spread radioactive material over a wide area.