One of the ways is to encourage courageous acts; acts such as whistleblowing. A whistleblower, named Bradley Birkenfield, helped the United States in 2007 by providing detailed accounts of one of UBS bank's efforts to promote tax evasion. Birkenfield helped the United States by describing how the tax evasion system worked. As part of the scheme, he confessed to running errands for wealthy clients, purchasing artwork, jewelry from Swiss account funds, and even hiding diamonds in a tube of toothpaste to help U.S. taxpayers open accounts offshore and escape