The Defense Advanced Research Projects Agency, DARPA, has joined the effort to prevent suicides among active duty service members. The numbers are grim, 30,000 in the last 20 years. The DARPA approach seeks to prevent suicide by working what you might call upstream from conscious thoughts. It’s called the Neural Evidence Aggregation Tool, or NEAT. Joining the Federal Drive with details, the program manager in DARPA’s defense sciences group, Dr. Greg Witkop.