The computer expert Will consults refers to recordings NASA made during Apollo 10, "the fourth manned mission to the Moon." Apollo 10 was the fourth manned Apollo mission, but only the second one to the moon, after the Apollo 8 Christmas Eve lunar orbital flight. Apollo 7 was the first manned flight, testing the Command Module, and Apollo 9 tested the Lunar Module, but both of those missions were conducted in Earth orbit.
After they use electroshock to interrogate the prisoner, Will says "she's in A fib", which is atrial fibrillation, a common issue in older adults. Electrocution commonly causes ventricular fibrillation (V Fib), which is a lethal rhythm that a defibrillator is designed to correct.