That's what the original report on FR was, I haven't seen anything more on that. Certainly would be bad news if true, I haven't heard of that type of thing being used before.
"I haven't heard of that type of thing being used before."(nwctwx)
Me either, and if it turns out to be true, especially if the liner was lead, I would take it as a taunt, and take it seriously.
the report on WBBM radio was it in fact was shielded