FILE - In this Thursday, Feb. 10, 2011 file photo, Yemeni activist Tawakkul Karman, left, chants slogans along with other demonstrators holding banners during an anti-government protest in Sanaa, Yemen. Banner on right reads in Arabic, "33 years of authoritarian rule." The 2011 Nobel Peace Prize was awarded Friday, Oct. 7, 2011 to Liberian President Ellen Johnson Sirleaf, Liberian peace activist Leymah Gbowee and Tawakkul Karman of Yemen for their work on women's rights. (AP Photo/Hani Mohammed, File)