There’s a calculator at the EFW site with this heading: “The average American’s lifetime share of the national debt is $482,367. What’s your share?” 
One enters one’s age and clicks the calculator. I entered age zero to calculate for a newborn American. Result:
“Your lifetime share of the national debt is: $1,536,621.”
How’s that for Original Sin? You are born into this world and haven’t done anything yet — but you have inherited the misdeeds of earlier generations and must spend the rest of your life paying for them.
Source: Economic Freedom of the World, 2012 edition.