"… ons and routinely allowed companies extra time to fix problems. MSHA chief Joe Main issued a statement in response to the findings: “The current rules have …"

"… and their families.Take the case of the Obama administration's MSHA chief, Joe Main.About a year into his tenure as the nation's top mine safety regulator, Ma …"

"… al industry could take to better protect miners. Two years ago, MSHA chief Joe Main proposed new rules based on such recommendations. Scientists and worker he …"