My apartment in Natal Brazil overlooked a narrow laneway where crack addicts gathered. At any time of the day or night, I could hear them shouting, screaming, squabbling, fighting, crying, laughing and singing. I could see them puffing on their pipes and at times could smell the acrid smoke. Brazil has the second worst crack cocaine addiction problem in the world. Only the United States has a worse problem. This is the beginning of a series on what I saw. I will intersperse it with other more attractive images to break the unrelenting misery.