“It seems that there is little understanding that it was banking secrecy that helped to resist twentieth-century dictatorships and that high tax rates — not money havens — are responsible for tax evasion, as Prince Hans-Adam of Lichtenstein has pinpointed. Clearly the amount of information collected for the purpose of future tax investigation is enormous, leaving little place for human privacy and dignity.”
http://mises.org/daily/6507/FATCA-and-the-End-of-Bank-Secrecy