In this Nov. 10, 2000 photo, an investigator points at the place of the April 26, 1986 explosion in reactor No 4 in the Chernobyl nuclear power plant, Ukraine. We reached the old control room, long and poorly lighted, with its damaged machinery, the place where the Soviet engineers threw a power switch for a routine test on that doomed night, and two explosions followed. (AP Photo/Efrem Lukatsky)

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