"In September 2003, the Public Interest Watch (PIW) complained to the Internal Revenue Service, claiming that Greenpeace USA tax returns were inaccurate and in violation of the law.[65] PIW charged that Greenpeace was using non-profit donations for advocacy instead of charity and educational purposes. PIW asked the IRS to investigate the complaint. Greenpeace rejected the accusations and challenged PIW to disclose its funders, a request rejected by then-Executive Director of PIW, Mike Hardiman, because PIW does not have 501c3 tax exempt status, as Greenpeace does in the U.S.[66] The IRS conducted an extensive review and concluded in December 2005 that Greenpeace USA continued to qualify for its tax-exempt status. In March 2006 The Wall Street Journal reported that PIW’s “federal tax filing, covering August 2003 to July 2004, stated that $120,000 of the $124,094 the group received in contributions during that period came from Exxon Mobil.”[67] In 2013, after the IRS performed a follow-up audit, which again was clean, and following controversies of politically motivated IRS audits against the Tea Party Movement, Greenpeace U.S. Executive Director Phil Radford called for a Congressional investigation into all politically motivated audits – including those allegedly targeting the Tea Party Movement, the NAACP, and Greenpeace.[68]