More than 400,000 majority-Muslim Rohingya flee ethnic cleansing in Myanmar into Bangladesh, according to the United Nations. Bangladesh has been overwhelmed by Rohingya since violence erupted in Buddhist-dominated Myanmar’s Rakhine State on August 25. Conditions are worsening in the border town of Cox’s Bazar where the influx has added to pressures on Rohingya camps already overwhelmed with 300,000 people from earlier waves of refugees. Poor and low-income countries such as Bangladesh, Uganda and Lebanon are left struggling to deal with huge numbers of refugees, when rich countries who host far fewer should be stepping up to provide aid and resettlement places..The latest evidence published by Amnesty International points to a mass-scale scorched-earth campaign across northern Rakhine State, where Myanmar security forces and vigilante mobs are burning down entire Rohingya villages and shooting people at random as they try to flee. In legal terms, these are crimes against humanity.