Yes Dede,
Our leaders, in particular the people of CEA know all that. And all citizens who are a little informed know this too.
But a disaster as serious as Chernobyl is unlikely, on the other hand small accidental leaks and constant releases of radionuclides linked to the fuel cycle already take place, sometimes published, sometimes not ...
there is no point in getting upset, relax. In France, the atom is a state within a state and powerful private funds control the essential actors (EDF, Areva, Gaz de France ...)
In addition to that, peak oil and the decarbonization of the electric mix opens up a real boulevard lined with banknotes for the nuclear industry.
So you see, to alleviate your fears, it would be necessary simultaneously to conquer political, economic and industrial powers ... and to take the opposite of a policy carried out for 40 years.
... namely promoting a massively decentralized and renewable electric mix with rational heating (solar + hydrocarbons) ...
instead of an ultra centralized electric mix, stuffed with fission and irrational Joule heating