Nawal al-Hawsawi is outspoken, black, a qualified pilot and married to a white man – everything her critics say a Saudi woman shouldn’t be.  But despite receiving waves of abuse on social media, she refuses to bow to convention and hits back at her detractors “with love”.  Al-Hawsawi has become something of a star on social media. She has amassed almost 50,000 followers on Twitter, where she posts about the importance of racial diversity and marriage equality.