mr. wahlberg. >> i thank the gentleman. going along that train here, assuming the fact that -- knowing the fact we had a bad actor as an operator of that mine, who may indeed have covered certain things so that your inspectors couldn't see them, yet the internal review found many instances where m sha inspectors observed her i couldn't say problems but did not issue a warning. for example, cited for faelg to install the level of roof support. page 83, the panel concluded, and i quote, with the proper quantity of air, there would not have been the methane, there be the fuel sources for the gas explosion. my question, how can we be confident the inspectors are going to find these failures in the future? >> i think with regard to both of those, i provided some insight of those earlier. on the tailgate issue. there was actually only one inspection that took place involving the roof supports. the other inspectors were there, it was over a three-day period when they went in and shut down -- i don't know if you caught that part of