'I was going into anaphylactic shock': the inside story of TV's most dangerous reality shows

From being eaten alive by ants to camping naked with hungry lions, survival TV makes for addictive television. But what kind of people are willing to risk their lives for our entertainment? It's nearly midnight and Kaila Cumings is curled up naked outside in the dust. She can hear noises beside her head: hot breaths, sniffing, a growl. There are two male lions circling her shelter, which is composed of just a few thin branches piled together. Earlier that day, lions killed and ate two poachers i...