Iran has shrouded a building that the U.N. nuclear agency suspects was used for secret work on atomic weapons, meaning spy satellites can no longer monitor Tehran's alleged efforts to clean up the site, diplomats told The Associated Press on Friday. The main building is now covered in plastic sheeting, shielding any activity there from the outside world and effectively shutting down the IAEA's only way of monitoring the site with its eyes in the sky through spy and commercial satellite imagery.
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