Yes, I saw that Myth Busters episode. It lasted under a few minutes and required constant repairing of leaks and tears and then they tore it apart. Similar to the amount of truth coming from the hot air balloon known as AT&T about anything invisible-verse or coverage area percentages.
Uhm, lead is lead. Just because it was flattened to the thickness of foil instead of being a bar or ingot of lead does not changes its place on the Periodic Table.
