Sen. Jay Rockefeller says he is not sure if the changes planned by the federal Mine Safety and Health Administration will make a difference in mine safety.

The MSHA says it is taking a number of steps to correct mistakes it made before the Sago Mine explosion and two other disasters that killed 19 coal miners last year.

The changes include setting up an internal accountability office to avoid enforcement and procedural lapses.

Copyright 2007 by wtov9.com. All rights reserved.