just watched Iron Man 2, thought it was pretty funny that Iron Man's arc generator (the thing in his chest) relied on Palladium as an insulator of some sort... and that it couldn't be replaced... which was slowly killing Iron Man
Iron Man 2 Palladium
yeah platinum also has that effect, they both like lead are heavy metals that will eventually poison a human through the skin just by being in contact with it. One of the main reasons why platinum and palladium have never been used as money like gold and silver.
Rename the "Iron Man Suit" with "US government." Replace "Palladium" with "Fiat money." Same end result. The very thing that fuels the machine winds up killing it.