Starting today in Venezuela, you are presumed to be an organ donor according to a new law. (link to the news item in Spanish.)
According to the Law for Organ Donation, Human Transplants, Tissues and Cells, if you have not made clear to the authorities via a notarized document or registration in a .Gov website your desire not to be an organ donor, it shall be assumed that your body can be harvested for organs without having to ask the family for permission.
All your organs belong to us!
It is Brave New World.