Only very superficially similar. The microscopic cracks in the Belgian reactors are in the steel pressure vessel, and are probably a manufacturing defect. What

Only very superficially similar. The microscopic cracks in the Belgian reactors are in the steel pressure vessel, and are probably a manufacturing defect. What's puzzling is that the manufacturer in the Netherlands supplied pressure vessels of the same model to other countries (including 10 to the U.S.), and that the different testing procedures in those countries haven't turned up any problems.