Despite the fact that it has happened as insignificant, the roof of one of the buildings at the Chernobyl nuclear power plant has collapsed. More and more nuclear power stations will be shut down in the next decade and the demolition work that will take place after closure is so expensive and complex, as the temptation to leave the power stations as they are, even more so in times of crisis. Who is going to invest in derribes that are useless?