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WASHINGTON, DC - JANUARY 20: High school students from Thibodaux, Louisiana take a photo of themselves at the Martin Luther King, Jr. Memorial, January 20, 2014 in Washington, DC. Americans marked the birth and legacy of civil rights leader Martin Luther King, Jr. (Photo by Drew Angerer/Getty Images) ( 464069643 )

WASHINGTON, DC - JANUARY 20: Lamount Williams, of Chesapeake, Virginia poses for a photo with his son Josiah Williams at the Martin Luther King, Jr. Memorial, January 20, 2014 in Washington, DC. Americans marked the birth and legacy of civil rights leader Martin Luther King, Jr. (Photo by Drew Angerer/Getty Images) ( 464069651 )

WASHINGTON, DC - JANUARY 20: People visit the Martin Luther King, Jr. Memorial, January 20, 2014 in Washington, DC. Americans marked the birth and legacy of civil rights leader Martin Luther King, Jr. (Photo by Drew Angerer/Getty Images) ( 464069633 )

WASHINGTON, DC - JANUARY 20: A National Park Service Ranger gives a guided tour of the Martin Luther King, Jr. Memorial, January 20, 2014 in Washington, DC. Americans marked the birth and legacy of civil rights leader Martin Luther King, Jr. (Photo by Drew Angerer/Getty Images) ( 464069659 )

President Barack Obama and his daughter Sasha, right, make burritos at DC Central Kitchen as part of a service project in honor of Martin Luther King, Jr. Day, Monday, Jan. 20, 2014, in Washington. Also helping were first lady Michelle Obama and daughter Malia Obama. (AP Photo/Jacquelyn Martin) ( Martin Luther King Holiday Obama )

President Barack Obama and his daughter Sasha, right, make burritos at DC Central Kitchen as part of a service project in honor of Martin Luther King, Jr. Day, Monday, Jan. 20, 2014, in Washington. Also helping were first lady Michelle Obama and daughter Malia Obama. (AP Photo/Jacquelyn Martin) ( Martin Luther King Holiday Obama )

US First Lady Michelle Obama (4th R) daughter Malia (3rd R) and senior advisor to the president Valerie Jarrett (2nd R) make burrittos while taking part in a community service project at DC Central Kitchen in celebration of the Martin Luther King Jr. Day on January 20, 2014 in Washington, DC. AFP PHOTO/Mandel NGANMANDEL NGAN/AFP/Getty Images ( 526238840 )

US President Barack Obama and daughter Sasha (R) take part in a community service project, making burritos at DC Central Kitchen, in celebration of the Martin Luther King Jr. Day on January 20, 2014 in Washington, DC. AFP PHOTO/Mandel NGANMANDEL NGAN/AFP/Getty Images ( 526238744 )

Texas at Brownsville art majors Julieta M. Garcia and Gabriela Jacinto organized large rolls of paper that had been donated to the Carlotta Petrina Art Museum on Monday, Jan. 20, 2014. The students were taking part in a sponsored make a difference day in honor of Martin Luther King Jr. (AP Photo/The Brownsville Herald, Brad Doherty) ( Martin Luther King Holiday Texas )

Joining a large crowd as they make their way on to Broadway, Destiney Scott of Denver carries a sign honoring Dr. Martin Luther King, Jr. and Malcolm X. The 29th annual Martin Luther King, Jr. Marade takes place with participants gathering at the King memorial site in City Park in Denver to listen to speeches and songs honoring King. Then the crowd makes its way marching down E. Colfax Ave. to Civic Center Park where birthday cake is served to all. (Photo by Kathryn Scott Osler/The Denver Post) ( CD21MARADE_KO13639 )

Former Denver Mayor Wellington Webb and wife Wilma lead off the Marade from City Park. The 29th annual Martin Luther King, Jr. Marade takes place with participants gathering at the King memorial site in City Park in Denver to listen to speeches and songs honoring King. Then the crowd makes its way marching down E. Colfax Ave. to Civic Center Park where birthday cake is served to all. (Photo by Kathryn Scott Osler/The Denver Post) ( CD21MARADE_KO29905 )

The 29th annual Martin Luther King, Jr. Marade takes place with participants gathering at the King memorial site in City Park in Denver to listen to speeches and songs honoring King. Then the crowd makes its way marching down E. Colfax Ave. to Civic Center Park where birthday cake is served to all. (Photo by Kathryn Scott Osler/The Denver Post) ( CD21MARADE_KO13416 )

People march down Washington Street towards Greater Norris Chapel Baptist Church during the Henderson County Black History Committee's Celebration of Dr. Martin Luther King, Jr's birthday in Henderson, Ky. Sunday Jan. 19, 2014. (AP Photo/The Gleaner, Darrin Phegley) ( MLK Celebration )

Marchers make their way to the South Carolina Statehouse during the King Day rally on Monday, Jan. 20, 2014, in Columbia, S.C. NAACP President William Barber told the crowd of a few thousand people that what conservatives leaders have done to the country is mighty low, but he thinks they are ready to find higher ground. (AP Photo/Jeffrey Collins) ( MLK Day-Carolinas )

North Carolina NAACP President William Barber talks about fighting for social justice at the King Day rally on Monday, Jan. 20, 2014, in Columbia, S.C. Barber told the crowd of a few thousand people that what conservatives leaders have done to the country is mighty low, but he thinks they are ready to find higher ground. (AP Photo/Jeffrey Collins) ( MLK Day-Carolinas )

Spectators hold programs with photos of the late Rev. Martin Luther King Jr. during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. (AP Photo/Jason Getz) ( Martin Luther King Holiday )

The presentation of the flags of the nations is performed before the start of the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. (AP Photo/Jason Getz) ( Martin Luther King Holiday )

Bernice King, second from right, talks with pastor Raphael Warnock, second from left, during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. Bernice King is the daughter of the late Dr. Martin Luther King Jr., and Christine King Farris, right, is the only living sibling of the late Dr. Martin Luther King Jr.. Also pictured is Atlanta mayor Kasim Reed, left. (AP Photo/Jason Getz) ( Martin Luther King Holiday )

Elder Cal Murrell reacts to a speaker during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. The service at the church where King preached featured prayers, songs, music and speakers. It was one of many events, including parades, marches and community service projects, across the country to honor King, an Atlanta native. (AP Photo/Jason Getz) ( APTOPIX Martin Luther King Holiday Georgia )

Brothers Lotanna, 6, left, and Kelo Ekwegbalu, 6, of Powder Springs, Ga., lay on the ground of the balcony during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. (AP Photo/Jason Getz) ( Martin Luther King Holiday )

Christine King Farris speaks during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. Christine King Farris is the only living sibling of the late Dr. Martin Luther King Jr.. (AP Photo/Jason Getz) ( Martin Luther King Holiday )

Bernice King, left, and Christine King Farris, second from left, stand in appreciation of the speech by Atlanta Mayor Kasim Reed, lower right, during the Rev. Martin Luther King Jr. holiday commemorative service at Ebenezer Baptist Church Monday, Jan. 20, 2014, in Atlanta. Bernice King is the daughter of the late Dr. Martin Luther King Jr.. Christine King Farris is the only living sibling of the late Dr. Martin Luther King Jr. Georgia Gov. Nathan Deal is seated at right. (AP Photo/Jason Getz) ( King Holiday Georgia )

People stand and clap during the music portion of the Black History Committee's celebration of Dr. Martin Luther King, Jr's birthday at Greater Norris Chapel Baptist Church in Henderson, Ky Sunday Jan. 19, 2014. (AP Photo/The Gleaner, Darrin Phegley) ( MLK Celebration )

WASHINGTON, DC - JANUARY 20: Rev. Al Sharpton (R) introduces U.S. Vice President Joe Biden before speaking during the National Action Network's annual King Day Breakfast, at The Mayflower Hotel, January 20, 2014 in Washington, DC. On Monday, Americans honor the birth of civil rights leader Martin Luther King, Jr. (Drew Angerer/Getty Images) ( 464059555 )

WASHINGTON, DC - JANUARY 20: Rev. Al Sharpton (L) listens as U.S. Vice President Joe Biden speaks during the National Action Network's annual King Day Breakfast, at The Mayflower Hotel, January 20, 2014 in Washington, DC. On Monday, Americans honor the birth of civil rights leader Martin Luther King, Jr. (Drew Angerer/Getty Images) ( 464059543 )

Activist and entertainer Harry Belafonte gives the keynote address for the Rev. Dr. Martin Luther King Jr. Symposium at Hill Auditorium on the University of Michigan campus in Ann Arbor, Mich., for Martin Luther King Jr. Day, on Monday, Jan. 20, 2014. (AP Photo/The Ann Arbor News, Melanie Maxwell) ( King Day Michigan )

Newly elected Brooklyn borough president Eric Adams speaks at a tribute to Martin Luther King, Jr. in the Brooklyn borough of New York, Monday, Jan. 20, 2014. Mayor Bill de Blasio told a packed audience Monday at the Brooklyn Academy of Music that the "price of inequality has deepened." The mayor says economic inequality is closing doors for hard-working people in the city and around the country. (AP Photo/Seth Wenig) ( Martin Luther King NYC )