 Before leaving, he placed his rifle and night vision goggles on his bed and walked off into the desert. Just before his disappearance, Bo Bergdahl sent the following email to his parents, quote, The U.S. Army is the biggest joke in the world. It is the army of liars, backstabbers, fools, and bullies. I am sorry for everything here. The horror that is America is disgusting, unquote.