In the age of social media, we are exposed to health information from a variety of sources (some reliable, some not). But polling says doctors are still Americans' top choice for health information.

The technology, which can dramatically improve access to medicine, has already proved itself. America’s policies are lagging behind.

Kenneth Shelembe says he makes a living wage through the Nquthu Waste Management Project.Kenneth Shelembe from Mahlungulu ...