On September 10 and 11, 2012, FDA hosted the third Science Writers Symposium, a special event for science and health journalists featuring lab tours and scientific presentations on a variety of topics including gene therapy, neural implants, scientific computing, medical countermeasures, flu adjuvants and salmonella. Speakers included FDA Commissioner Margaret A. Hamburg, M.D; FDA Chief Scientist Jesse Goodman, MD; and FDA's Commissioner for Foods Mike Taylor.