By Sarah de Sainte Croix, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – A leading figure in Brazil’s Landless Workers Movement (the MST, or Movimento dos Trabalhadores Rurais Sem Terra), was assassinated last Thursday evening in the Northern state of Pará. Valdemar Oliveira Barbosa was shot to death by two gunmen while riding his bicycle through the streets of his home town of Marabá.
Barbosa became the fourth person involved in environmental or land rights movements to be murdered in the state in . . .