Human faeces map finds San Francisco's homeless

HELPING THE HOMELESS: An attendant standing outside two portable toilets in the Tenderloin District in San Francisco, California. The "(Human) Wasteland" maps track the homeless and determine where help is needed.

SAN FRANCISCO: Jennifer Wong has found a way to track the homeless and determine where help is needed: mapping where people defecate on the streets of San Francisco. 

Wong, a Web developer, used a city database to create the interactive maps, which she dubbed "(Human) Wasteland." They dramatically illustrate the problem of homelessness in a city of sharp divides between rich and poor.