Behind Japan's escalating nuclear crisis sits a scandal-ridden energy industry in a comfy relationship with government regulators often willing to overlook safety lapses. Leaks of radioactive steam and workers contaminated with radiation are just part of the disturbing catalog of accidents that have occurred over the years and been belatedly reported to the public, if at all. In one case, workers hand-mixed uranium in stainless steel buckets, instead of processing by machine, so the fuel could be reused, exposing hundreds of workers to radiation. Two later died. Everything is a secret," said Kei Sugaoka, a former nuclear power plant engineer in Japan who now lives in California. "There's not enough transparency in the industry." In 1989 Sugaoka received an order that horrified him: edit out footage showing cracks in plant steam pipes in video being submitted to regulators. Sugaoka alerted his superiors in the Tokyo Electric Power Co., but nothing happened - for years. He decided to go public in 2000. Three Tepco executives lost their jobs. The legacy of scandals and cover-ups over Japan's half-century reliance on nuclear power has strained its credibility with the public. That mistrust has been renewed this past week with the crisis at the Fukushima Dai-Ichi plant. The vagueness and scarcity of details offered by the government and Tepco - and news that seems to grow worse each day - are fueling public anger and frustration.