@Francis,
Francis - I know the presentation was somewhat ponderous, but that is the nature of the actuarial calculations; economics generally isn't called the dismal science for nothing. As to the euro, you will recall it started at EU 1.2 to the USD, fell to 0.8 USD, and now is back higher from its starting point. I had occasion to meet recently with the "father of the euro" (and of our supply-side economics, not meaning to digress) Prof. Mundell, who thinks a world currency incorporating EU 1 = USD 1 = Yen 100 would solve many of our problems by removing a major source of instability from the world economy.
Separately, for a clear explanation (accessible to the non-specialist) of why>>>>
"illegal immigration equals importing poverty"
>>>>>>>>>>>>>see the many articles in the NY Times by Prof. Krugman, who also has a Nobel prize, and is far to the left of Prof. Mundell. It's the numbers, not the politics, leading to that conclusion - illegal immigration really does equal "importing poverty".