FILE - In this May 18, 2012 file photo, members of the Tamang ethnic community participate in a protest against the government demanding ethnicity-based federalism outside the building of the Constitution Assembly hall in Katmandu, Nepal. For centuries, the resentments simmered in this Himalayan nation, a place where everyone knew who belonged to the country's small elite and who did not. Ethnic minorities and low-caste Nepalis knew they had little chance to join the economic and political leadership, which was dominated by high-caste members of just two ethnic groups among the country's dozens. Now, as Nepal struggles to create a stable republic, those resentments have erupted anew, with regional, ethnic-based politics that helped cause the government's complete collapse last weekend and sparked worries of widespread ethnic unrest. (AP Photo/Niranjan Shrestha, File)