
U.S. President Barack Obama attends a service at the Vermont Avenue Baptist church in Washington January 17, 2010.
REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS RELIGION)

U.S. President Barack Obama takes part in Sunday service at the Vermont Avenue Baptist church in Washington January 17, 2010.
REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS RELIGION)

U.S. President Barack Obama takes part in Sunday service at the Vermont Avenue Baptist church in Washington January 17, 2010.
REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS RELIGION)

President Barack Obama speaks at church services at Vermont Avenue Baptist Church, Washington Sunday, Jan. 17, 2010, the eve of the federal holiday marking the birth of slain civil rights leader Martin Luther King.
(AP Photo/Pablo Martinez Monsivais)

U.S. President Barack Obama speaks during Sunday service at the Vermont Avenue Baptist church in Washington January 17, 2010.
REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS RELIGION)

U.S. President Barack Obama speaks during Sunday service at the Vermont Avenue Baptist church in Washington January 17, 2010.
REUTERS/Yuri Gripas (UNITED STATES - Tags: POLITICS RELIGION)

President Barack Obama, center, bows his head as he prays with congregation members at Vermont Avenue Baptist Church, Washington Sunday, Jan. 17, 2010.
(AP Photo/Pablo Martinez Monsivais)

President Barack Obama participates in church services at Vermont Avenue Baptist Church, Washington Sunday, Jan. 17, 2010.
(AP Photo/Pablo Martinez Monsivais)

President Barack Obama rubs his brow during church service at Vermont Avenue Baptist Church in Washington Sunday, Jan. 17, 2010.
(AP Photo/Pablo Martinez Monsivais)

President Barack Obama lowers his head during church services at Vermont Avenue Baptist Church inWashington Sunday, Jan. 17, 2010.
(AP Photo/Pablo Martinez Monsivais)