Which biological agents did AUM Shinrikyo attempt to use in Japan?

Between April 1990 and July 1995, the AUM Shinrikyo sect attempted to carry out biological attacks in Japan using two specific agents:

• Anthrax: The group attempted four separate attacks using this pathogen.
• Botulinum toxin: The group attempted six attacks using this toxin.

These efforts, which included targeting a U.S. naval base at Yokosuka, were largely unsuccessful because the sect members had not mastered the necessary science and technology required for effective biological warfare. The use of such agents to cause harm is a grave violation of fundamental ethical principles regarding the sanctity of human life and the prohibition of indiscriminate violence against civilians.1