FILE - In this June 14, 1986 file photo, a young boy undergoes a medical examination at the Artek Pioneer Camp in present-day Ukraine, after he was evacuated from an area near the Chernobyl nuclear power plant. Japan's Fukushima disaster, which will leave taxpayers there with a massive bill, brings to the fore one of the industry's key weaknesses _ that nuclear power is a viable source for cheap energy only if it goes uninsured. (AP Photo/File)