Not surprised. Even that term, "Totalization agreement with Mexico" is pretty scary in itself.
What's even scarier is that none of the so-called conservative political commentators, such as Limbaugh, Hannity or Coulter have expressed their opinions pro or con on the long term economic impact of this agreement on the US taxpayers.
I'm not surprised, though. They blithely ignored Arbusto's Medicare propaganda, too.