Twenty-eight states and territories regulate workplaces themselves, rather than defer to the feds. Some of these programs are effective; others, like Kentucky's, fall short.

A prosecutor thought Grant Oakley's workplace death might be grounds for a homicide charge. He turned to the state investigation for proof.

Delanna Miller and her husband were expecting their second child when he was electrocuted to death while trimming trees.

Kentucky failed to properly investigate nearly every workplace fatality for a two-year period. That's left Kentucky's workers at risk, and the state's worker safety agency in peril.