are digging with their hands, rescue dogs are being used extensively to try to pinpoint locations where the dogs, they may be able to smell humans so human rescuers can come in and focus their digging efforts there. after some rescuers themselves had to be rescued from the mud on the first day of the landslide, there's been an intense focus on trying to move people around on site in a way that they can do the work of trying to find people without themselves becoming victims of the slide. they've used zodiac rafts on site. they've also used vehicles that are essentially like hover crafts. very sensitive high-tech listening devices as well as remote cameras so they can insert into small spaces so the cameras can look around even if the rescuers themselves can't get into the small spaces. to see if anyone is there. for all of the hundreds of people on site, for all the herculean effort that has been expended here, no one has been