U.S. President Barack Obama looks back to his family members as they arrive for the dedication of the Martin Luther King, Jr Memorial on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
A portrait of Dr. Martin Luther King is held up in the crowd during a dedication ceremony being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
U.S. President Barack Obama (C) listens to Harry Johnson, president and CEO of the MLK Jr National Memorial Project Fund (L), as he tours the grounds with his family and members of the King family, prior to the dedication of the Martin Luther King, Jr Memorial on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
during the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
Martin Luther King III speaks during a dedication to his father being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
Bernice King speaks during the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
Rev. Jesse Jackson during the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
U.S. President Barack Obama (L) makes remarks at the dedication of the Martin Luther King, Jr Memorial, as (L-R) Vice President Joe Biden, his wife Dr. Jill Biden and Interior Secretary Ken Salazar listen, on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
U.S. President Barack Obama (L) makes remarks at the dedication of the Martin Luther King, Jr Memorial, as (L-R) Vice President Joe Biden, his wife Dr. Jill Biden and Interior Secretary Ken Salazar listen, on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
Singers Mary Mary perform during the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
Ledisi performs during the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
Sheryl Crow performs during the Martin Luther King memorial dedication being held on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo
U.S. President Barack Obama, flanked by daughters Sasha (L) and Malia (R) examine a time capsule along with first lady Michelle Obama (2nd,R) and Michelle's mother Marian Robinson as they arrive for the dedication of the Martin Luther King, Jr Memorial on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
Singer Aretha Franklin (R) accepts applause as she finishes her performance with U.S. President Barack Obama, first lady Michelle Obama and Harry Johnson, president and CEO of the MLK National Memorial Project Fund (L) as they attend the dedication of the Martin Luther King, Jr Memorial on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
Dee Hilfilger and husband Tommy arrive at the Martin Luther King dedication being held on the Mall in Washington, D.C., October 16, 2011 UPI/Mannie Garcia | License Photo
Marian Robinson (R), grandmother to U.S. President Barack Obama's daughters Sasha (2nd,R) and Malia (2nd,L) and White House advisor Valerie Jarrett (L) applaud the conclusion of the dedication of the Martin Luther King, Jr Memorial on the National Mall in Washington DC USA, October 16, 2011. The ceremony for the slain civil rights leader had been postponed earlier in the summer because of Tropical Storm Irene. UPI/Mike Theiler/Pool | License Photo
Rev. Cal H. P. Merrelle from Atlanta, Georgia stands and shouts during the Martin Luther King Memorial dedication ceremony on the Mall in Washington, D.C., October 16, 2011. UPI/Mannie Garcia | License Photo