One moment I was dancing with my friends and the next I was at the back of a pickup truck being dragged into Gaza. I spent 505 days underground in terror tunnels. There was no fresh air, no sunlight, no sense of time. Just darkness, pitch black 24 hours a day. I couldn't see my hand in front of my face. At one point, I thought that I had gone blind." Shem Tov spoke of the physical and emotional toll: "The hunger was constant. I was weak, dehydrated, and starving. Many days all I had was a single cracker and...