Migrants and asylum seekers protest outside a State Prosecutor’s office in Tijuana, Baja California state, Mexico on Friday, Dec. 3, 2021. US and Mexico authorities prepare for the Migrant Protection Protocol (MPP) program, also known as ‘Remain in Mexico,’ to resume on December 6 after a US court ordered its reimplementation. Migrants along the border constantly complain about abuse of power, discrimination and persecution from Mexican security forces.