Lt. Col. Frank Marilao, assistant chief of staff, Marine Corps Community Services, completes a circuit using Little Bits (electronic circuits), during a STEM lab presentation at the Combat Center Library, March 22, 2016. (Official Marine Corps photo by Cpl. Connor Hancock/Released) - Lt. Col. Frank Marilao, assistant chief of staff, Marine Corps Community Services, completes a circuit using Little Bits (electronic circuits), during a STEM lab presentation at the Combat Center Library, March 22, 2016. (Official Marine Corps photo by Cpl. Connor Hancock/Released)