I think it was last year that McDonald's Japan had to stop selling fries in portions bigger than small since their potatoes were imported from the US, and that supply was cut off due to union strike action in a US port. Any kind of single-sourcing is a bad idea.
Singapore McDonald's ran out of curry dip due to the port congestion. Which was really funny to me because the dip was manufactured in the states even if it's not consumed there.
