"Rich Americans renouncing U.S.
citizenship rose sevenfold since UBS AG (UBSN) whistle-blower Bradley Birkenfeld triggered a crackdown on tax evasion four years ago. About 1,780 expatriates gave up their nationality at U.S.
embassies last year, up from 235 in 2008, according to Andy
Sundberg, secretary of Geneva’s Overseas American Academy,
citing figures from the government’s Federal Register. The
embassy in Bern, the Swiss capital, redeployed staff to clear a
backlog as Americans queued to relinquish their passports." - Bloomberg, May 1, 2012.