A falling asleep during the work shift is a far more serious violation of FAA policies because this is a behavior controllers cannot always be blamed for.
B using laptops and cell phones in night shifts is a totally inoffensive behavior of air traffic controllers.
C using electronic distractors at work during work shifts should not be punished when controllers are fighting off sleep.
D playing with technological gadgets continuously at their working stations is justified if air traffic controllers are trying to avoid sleep.
E applying penalties to air traffic controllers who sleep and use electronic devices while on duty is highly recommended.