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Like this.
The sources said that the death of the scientists is a great blow to the Russian nuclear industry.
The experts were tasked with completing construction of the plant and ensuring that it would be able to survive an earthquake.
According to the sources, although Iranian nuclear scientists have in the past been involved in unexplained accidents and plane crashes, there is no official suspicion of foul play. Investigators are probing human error and technical malfunction as the causes of the crash.
Conspiracy circles will be buzzing, no doubt.
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When I was working in Russia on a oil pipeline project, we used 99% Russian labor. I was amazed at how many of the people, in all crafts, had a college degree, in nuclear science. They were a dime a dozen.