FILE - In this Jan. 16, 2006 file photo, Liberia's new President Ellen Johnson Sirleaf, right, is helped with a sash by Liberian Senior Ambassador-at-large George W. Wallace, Jr., during her inauguration at the Capitol Building in Monrovia, Liberia. Liberian President Ellen Johnson Sirleaf, Liberian activist Leymah Gbowee and Tawakkul Karman of Yemen have won the 2011 Nobel Peace Prize, the Norwegian Nobel Committee announced Friday, Oct. 7, 2011. (AP Photo/Charles Dharapak, File)

FILE - In this Oct. 6, 2005 file photo, Liberian Presidential candidate Ellen Johnson Sirleaf from the Unity Party 'UP' waves at her supporters during a rally in Monrovia, Liberia. Liberian President Ellen Johnson Sirleaf, Liberian activist Leymah Gbowee and Tawakkul Karman of Yemen have won the 2011 Nobel Peace Prize, the Norwegian Nobel Committee announced Friday, Oct. 7, 2011. (AP Photo/Schalk van Zuydam, File)

FILE - In this July 21, 1997 file photo, Liberian presidential candidate Ellen Johnson-Sirleaf speaks to her supporters asking them to keep faith and solidarity while the vote counting from Sunday's presidential election continues, Monrovia, Liberia. Liberian President Ellen Johnson Sirleaf, Liberian activist Leymah Gbowee and Tawakkul Karman of Yemen have won the 2011 Nobel Peace Prize, the Norwegian Nobel Committee announced Friday, Oct. 7, 2011. (AP Photo/David Guttenfelder, File)