In an interview with the SonntagsBlick newspaper, Villiger also commented that legal cases against former UBS bankers did not affect the bank.
"The clients are not just harmless victims. They knew what they wanted to evade. But they trusted the bank that it would work. Now we have to correct that."
Switzerland last week agreed to disclose to Washington the details of 4,450 accounts belonging to rich US clients suspected of hiding from US tax authorities. More...