>> they are digging in trench and laboring in lakes hunting for treasure in a playground from hell. >> hard enough for an adult man, unthinkable for a child. and, yet, tens of thousands of congoeze kids are involved in every stage of mining for cobalt. barely 10 years old children lug bags of cobalt. they can pick it out of a pile at the age of 4 and even those two tao young to work spend much of the day breathing in toxic fumes. >> that's where solar panels come from. that's where electric cars come from. child slave labor. >> why is nobody talking about this? this is a humanitarian crisis fu...