General with no Facebook account to teach Marines social media etiquette

WASHINGTON — Gen. Robert Neller, the 37th Commandant of the Marine Corps, is on a mission to stamp out online misconduct in the ranks — a topic he feels well-qualified to discuss despite never having owned a social media account or posting to an Internet message board.

Neller, who was 32-years-old when the classic video game Oregon Trail was released for…