Terrible hardship has driven many Christians from the diocese of Aleppo, but, writes Raymond Whitaker, many remain and are maintaining warm relations with their Muslim neighbours Silver-haired and immaculately turned out, there is little in Antoine Audo’s appearance to betray the extraordinary pressures he faces. But as the Chaldean Bishop of Aleppo in north-eastern Syria, he has watched his city and his country descend into chaos and barbarism since the revolt against the Assad regime began just over four years ago.“To come here I had to go through the desert,” Bishop Audo said in London. In normal times it would take two hours to drive by car from Aleppo to Homs, near the border with Lebanon, and from there another two hours or so to get to Beirut airport. But both Sy