Yeah, that is fascinating that.
I bet France has a reactor with problems and they vented, and given their population would turn against Nuclear energy in a second, decided better than to say anything.
Trust the government. They will tell you if there is a danger. They are all knowing and all seeing. Have faith in them to protect you.
Or buy a Geiger counter Back in stock now. You can also get
recalibrated CD survey meters for about the same price. And yes, you need a supply of KI pills, so you can take some if that Iodine-131 is flying over your head in a significant concentration.
Or you can rely on radiation tracking sites like
the one at Black Cat - but there is no guarantee they will stay up and active if the government wont them shut down. For what its worth, the blackcat map isn't showing anything unusual in Europe, but they don't have a participating detector in the Czech republic either.