Staff Sgt. Tom Frame, the author's father, stands at right in this 1968 snapshot from Vietnam. Frame family photo hide caption

NASA engineers on the flight team celebrate the InSight spacecraft's successful landing on Mars at the NASA Jet Propulsion Laboratory in Pasadena, Calif., on Monday. Al Seib/AFP/Getty Images hide caption

Ochsner Baptist Medical Center in New Orleans hasn't needed device reps' help since it started using technology from a company called Sight Medical that handles inventory management. Courtesy of Sight Medical hide caption

The Farmington Mine Disaster memorial in Mannington, W.Va., bears the names of the 78 men killed in the explosion on Nov. 20, 1968. Jesse Wright/West Virginia Public Broadcasting hide caption

Clockwise from left: Aniba Hotep, Brian McKnight, Isaiah Sharkey, Shoshana Bean. Courtesy of the artists hide caption

Dr. Emmy Betz, a co-founder of the Colorado Firearm Safety Coalition, led a meeting of the group at the Centennial Gun Club. "If you want to reduce suicide deaths, you have to talk about firearms," Betz says. "And if you want to reduce firearm deaths, you have to talk about suicide." Theo Stroomer for NPR hide caption