WBEZ brings you unbiased news and information. Sign up for our newsletters to stay up to date on the stories that matter.When a nearly boiling acid solution burned a Chicago factory worker over most of his body, the company didn’t call 911. Carlos Centeno was a temporary worker. WBEZ and the Center for Public Integrity investigated hazards facing temp workers, and found that the government isn’t keeping close track of their injuries. Chip Mitchell and Jim Morris of the Center for Public Integrity have the story.