Marine Corps drill instructors represent one of the most legendary roles in the military. From the 1987 war movie "Full Metal Jacket" to their essential job of making new Marines at boot camp in 13-week cycles, the role has become iconic to the public and within squad bays alike. Last month, Military.com and The Washington Post published a joint investigation into the mental health and personal struggles that have afflicted the drill instructor population. With my reporting partner, Kelsey