Khartoum is the capital of Sudan, the home country of the cartoonist Khalid Albaih, from which he is in exile. "Khartoon!" is a play on words and the name of his Facebook page. Albaih's cartoons have become the symbol of the Arab Spring protests. They are published online and reproduced as graffiti in the streets around the world, from Tahrir Square to Beirut, and have earned him the reputation of "artist of the revolution." How revolutionary can a cartoon be? What is the weight of art and satirical work in society?