South Korean scientists have been able to train artificial intelligence to detect anthrax at fast speeds, potentially dealing a blow to bioterrorism. Hidden in letters, the biological agent killed five Americans and infected 17 more in the year following the 9/11 attacks, and the threat of a biological attack remains a top concern of Western security services as radicals such as the Islamic State militant group (ISIS) seek new ways to attack the West. Researchers from the Korea Advanced Institute of Science and Technology have now created an algorithm that is able to study bacterial spores and quickly identify the biological agent, according to a paper published last week for the Science Advances journal.