Mexico mayor accused of ordering attack on missing students

Mexico has ordered the arrest of the mayor of the city of Iguala, his wife and an aide, charging they masterminded last month's attack that left six students dead and 43 missing. Carrying torches and candles, tens of thousands of people marched through Mexico City to protest the disappearance of the students. "We shall overcome," protesters shouted with clenched fists in the air. Marching were students, teachers, farmers and activists joining relatives of the missing students.