feet below the earth's surface where they believe four missing miners might be trapped. they're trying to ventilate toxics gasses from the area so rescue teams can head down safely. west virginia's governor is hoping that can happen in the next few hours even though signals to contact survivors failed to produce a response. >> we're hoping we can get the mine and the air safe enough to get our rescue teams back in some time this afternoon. so the timetables are still the same as we thought they would be. the drilling went bet or hole number one than anticipated. they got through quicker. we did not get any response back from, if you will the beating on the pipes signaling. >> once the deadly methane gas is safely ventilated from the area, that's when search teams would need about five hours to reach the location where they believe the miners are trapped. so again, as we've been talking about, john, a slim hope, but hope nonetheless that perhaps