all i have do watching on that live monitor, just have to list tonight chants and cheers and yep, another man is coming up. >> you never want to think about the possibility of anything negative going wrong, especially in a situation like this but the reality is these guys in a capsule, inside a hole not much bigger than the capsule itself, still risks at place as these men come up. >> reporter: sure. let me walk you through a couple concerns they had prior to the process beginning. one of them was they wanted to monitor the health of the men as they were ascending, making that 15-minute journey out of the mine. they equipped them with some mechanisms that will monitor their vital signs during that ride up to the surface. they're also wearing specially designed garments that provide compression because there is concerns about blood clots and blood pressure but also moisture-resistant to provide additional protection. also wearing specially designed sunglasses that cut all of the uv rays. unbelievably even though it's