. >> earlier we spoke to sheldon krimsky at tufts university who pointed out that the chemicals that leaked were in storage facilities. it's not just the chemical plant, it's the chemicals that they are using, and this was not a plant, it was a storage facility, and the chemical is a solvent, part of the alcohol family, a solvent for cleaning up coal. so it was not a production facility for the chemical. production facilities are where the chemicals are produced, where they have more oversight because of o c.i.a. regulating the workers in the plant, but this was a storage facility for the use of the chemical in cleaning up cole. and i'm not clear in my own mined whether the state for the federal government has the primary responsibility. >> sheldon krimsky said a major problem is that emergency crews knew little about the chemicals since it's never been properly test ed. that's the case with tens of thousands of other chemicals used. >> still ahead on al jazeera america - parliamentary session gets punchy in turkey. details of a fight. turning their lives around - former prostitutes