It is seldom acknowledged the tremendous burden that the Nuclear Age leaves on future generations, and the environment, for an extremely long time. Nuclear processes, and products, are activated at energies millions of times higher than the energies of chemical processes, and consequently they cannot be eliminated by the natural environment on Earth. So it turns out that hundreds of nuclear tests performed in the atmosphere left a huge radioactive contamination; Rosalie Bertell estimated 1,300 millions victims of the Nuclear Age; civil nuclear programs have produced enormous quantities of radioactive waste, whose final disposal has not been solved by any country; decommissioning of tens of shut down nuclear plants shall involve costs which were underestimated in the past; spent nuclear fuel accumulates in decontamination pools, or in dry cask storage, but no final storage has been carried out yet; radioactivity of spent fuel will last for tens of thousand years; military nuclear programs leave, besides almost 15,000 nuclear warheads, approximately 1,300 metric tons of plutonium; even mining of natural uranium was, and is, carried out mainly by poor and exploited populations, which suffer serious health consequences; paradoxically enough (or maybe not), French territory itself is widely contaminated. All these facts have been downplayed during the whole history of the Nuclear Age. Future generations shall not be grateful.