The Independent: The crackdown on wealth stashed in Switzerland has failed. Why? Because of a deal Britain cut with Liechtenstein.
Full story: http://www.independent.co.uk/news/business/analysis-and-features/how-the-hmrc-helped-tax-avoiders-stay-ahead-of-the-law--by-shifting-cash-for-switzerland-to-liechtenstein-9896964.html