IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Sen. Tom Coburn (L) (R-OK) and Sen. Carl Levin (R) (D-MI) confer before a hearing of the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman is sworn in prior to testifying before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman (C) testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman testifies before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)

IRS Commissioner Douglas Shulman Testifies At Senate Hearing On Taxation Of Mutual Funds

WASHINGTON, DC - JANUARY 26: Internal Revenue Service Commissioner Douglas Shulman (L) and Assistant Treasury Secretary for Tax Policy Emily McMahon (R) are sworn in prior to testifying before the Senate Homeland Security and Governmental Affairs Committee January 26, 2012 in Washington, DC. The committee heard testimony on the topic of "Taxation of Mutual Fund Commodity Investments." (Photo by Win McNamee/Getty Images)