NPR is standing by their initial report that Massey Energy is being investigated for possible bribery and criminal negligence. A federal source is denying the story:

A federal law-enforcement source is denying that the Mine Safety and Health Administration is being investigated as part of a larger probe into the circumstances surrounding the Upper Big Branch mine disaster in West Virginia. NPR has reported that Massey Energy and MSHA were the subjects of investigations. The federal law enforcement source said: "I can say that there's an investigation but it's not about them (MSHA)." NPR stands by its earlier report.

The original post is below: