Image: Apple CEO Tim Cook Testifies At Senate Hearing On U.S. Tax Code

WASHINGTON, DC – MAY 21: (L-R) Apple head of tax operations Phillip Bullock, Apple CEO Timothy Cook and Apple Senior Vice President and CFO Peter Oppenheimer prepare to testify before the Senate Homeland Security and Governmental Affairs Committee’s Investigations Subcommittee about the company’s offshore profit shifting and tax avoidance in the Dirksen Senate Office Building on Capitol Hill May 21, 2013 in Washington, DC. A Congressional report released yesterday said that Apple, America’s most profitable technology company, used a complex system of international subsidiaries and tax avoidance efforts to shift at least $74 billion out of the reach of the Internal Revenue Service between 2009 and 2012. (Photo by Chip Somodevilla/Getty Images)