Translate the following English sentence to French:
"These crimes are what lie behind the Dover tragedy, as well as all the anonymous tragedies that are played out every day, which we do not hear about since they are not reported in the press."
Ce sont elles qui sont à la base de la tragédie de Douvres, mais aussi de toutes ces tragédies anonymes qui se jouent chaque jour sans que nous en ayons connaissance parce que la presse ne les rapporte pas.