all this stuff from experts is all very convincing and all but y'know...LeBron James isn't wearing a Knicks jersey right now. Experts get it wrong all the fucking time.
My advice
If you have a kid or plan to have one,move...
Old farts have little to fear
Basement nerds are constantly exposed to quite high levels of radiation,if the basement is not ventilated enough.
The big problem with this airborne stuff is that you can't really stop it,localized sources are easy,just obey 1/r^2 rule.
Inhaling highly radioactive stuff is bad,very very very bad
Little anecdotal stuff
One of my nuclear physics college professors,extremely smart nice old guy had like 2-3 students per year(including me),because everybody else was too scared to come even near the lab,lol
One time he pulled like highly radioactive gamma emitter out of its casing and started waving with it,he was like "look,just obey 1/r^2 rule"
My colleague was like"holy shit,are you trying to kill us"...it was like in kung fu movies,when some dude leans back and defies gravity

One time he had to go to an X-ray and people there where in shock...everything was white,he had some piece of radioactive material in his pocket for months
We are all still alive.
In short,airborne stuff is dangerous,rain is extremely good,but beware what you eat or drink.
Also you have induced radioactivity...non-radioactive stuff remaining radioactive after radioactive source is removed,although that should be confined to the reactor