What about putting film in a lead bag and letting it be x-rayed in luggage? Am I false in thinking that the lead would provide adequate protection for the higher level of x-ray intensity that is used today?

I used such bags 20 years ago, but haven't in years, but my dad apparently just used one & he isn't sure if he should even bother developing his film. I said try one or two, but thought it would likely be OK given that it was in a protective bag.