An informant who provided German authorities with data from a Liechtenstein bank that sparked a massive tax fraud probe has said his life is threatened, two news magazines are to report Monday. "You are putting my life in danger," Heinrich Kieber wrote to German intelligence services, according to German weekly Focus in an article released in advance of publication over the weekend. The informant has blamed the intelligence services for not keeping his identity secret and asked them to provide him with a new identity so that he can relocate to South America. His request has been refused, Focus reported....