Idlib, Syria’s sole remaining rebel province is on the verge of the biggest humanitarian crisis of the 21st century". So says the UN’s top official responsible for emergency relief. Almost a million civilians have fled their homes since December. Shaun Ley interviews Dr Mufaddal Hamadeh, president of the Syrian American Medical Society. He’s been to Idlib this year, and seen for himself the carnage of war, and how hospitals and clinics which should give sanctuary have been bombed. After nine years of war, have we become indifferent to Syria’s pain?