Investigators are still putting together the pieces, but from what we know so far, it’s likely that 27-year-old German co-pilot Andreas Lubitz committed mass murder-suicide when he flew a Germanwings passenger jet carrying 149 passengers and fellow crewmen into the French Alps. Authorities say they haven’t found a suicide note, but it’s a safe bet that Lubitz’s final act was prompted by depression (they found the meds), diminished vision, a deteriorating romantic relationship and his worry that the Lufthansa subsidiary would ground him if they found out about his problems, crashing a career he loved and blowing up his livelihood. Though rare, pilot suicide isn’t unheard of. As long as the current system remains in place, it will happen again. By “system,” I’m referring both to specific rules issued by the FAA and other countries’ aviation authorities to regulate pilots, and to that most coldhearted of socioeconomic systems, you’re-on-your-own capitalism. “Before they are licensed, pilots must undergo a medical…