to use the giant Demag cranes to carry the blotters up to the roof of Unit Three, the commission refused. The cranes were needed twenty-four hours a day for the construction of the Sarcophagus and could not be spared. The NIKIMT team conducted a second successful experiment, deploying its invention from helicopters, but was then denied permission to fly—because the rotor downdraft recirculated too much toxic dust.