workers of america in various positions from 1974 it 2002 including 22 years as the administrator of umwa's occupational health and safety department. prior to his nomination he worked as a mine safetiy consultant. welcome back, mr. main. before i recognize you for your testimony, let me remind you of our quaint but nevertheless important lighting system there. it's a green, yellow, red, self-evident. we want to hear what you have to say. all of your testimony will be included in the record. you're free to summarize as you wish. when we get into questions, i will be asking my colleagues to stick to the five-minute rule so that we can all have a chance to engage in the discussion and have time for the second panel. and with that, sir, you're recognized. >> i think it's on now. thank you, chairman kline, and ranking member woolsey. i appreciate the opportunity to report on the april 5, 2010 disaster in the upper branch mine that caused the death of 29 miners. actions thins sen, findings and before the explosion and why this efforts to use all tools legislation is still needed to fully protect