The global medical aid agency, Doctors Without Borders or MSF is concerned about the humanitarian situation of more than one million people who are internally displaced in Burkina Faso. MSF says the arrival of those displaced in host areas has increased the demand for water, healthcare, food and shelter. The situation in the city of Barsalogho is said to be particularly severe. MSF's Deputy Program Manager, Ahmad Samro speaks about some of the challenges they face...