Communications were the lifelines of our covert camp organization. It was essential for everyone to know what was happening in camp, whether the news was about a new torture or just a friendly word of encouragement to a disheartened fellow POW.
The primary means of communication was by use of the "tap" code. The code was a simple arrangement of the alphabet into a 5 x 5 block. It was derived through one man's code knowledge gained from Air Force survival school.
The Vietnamese were able to extract, by torture, every detail of the code. They separated us and built multiple screens of bamboo and tarpaper between each room, but they never succeeded in completely stopping us from communicating.
Some men were tied to their beds, sometimes for weeks at a time. Here, I have drawn a picture showing the handcuffs being worn in front, but the usual position was with the wrists handcuffed behind the back. A man would live this way day and night , without sleep or rest. He could not lie down because his weight would cinch the already tightened cuffs even tighter, nor could he turn sideways.
The cuffs were taken off twice a day for meals. If the cuffs had been too tight, the fingers would be swollen and of little use in picking up a spoon or a cup.
Hopefully, a man could perform his bodily functions while the cuffs were momentarily removed at mealtimes. If not, he lived in his own mess.