As suicide rates approach a 30-year high, researchers are working to pinpoint the causes of suicide attempts and, determine how to keep people who are vulnerable to suicide... from access to the most lethal means of completing that act-- firearms. We hear from Dr. Paul Nestadt, psychiatrist and post-doctoral fellow at the Johns Hopkins Bloomberg School of Public Health. His research compares urban and rural suicide rates in Maryland.And we speak to Jessica Honke and Deneice Valentine of the Maryland branch of the National Alliance on Mental Illness about ways to head off suicide attempts. The Maryland Crisis Hotline is 1-800-422-0009.