CNN CNN Newsroom Live July 16, 2015 05:11:00
It's a ways down. you can see this is the modified motorcycle that vigtinvestigators showed us images before. it is on a track. it seems to roll back and forth. there are buckets left behind and look at this left behind oxygen tanks, as well in order for them to survive down here. it is a very tight space. i can't even stand up. i'm 5'10" and i can't stand up all the way. it is a remarkable fete of engineering. the tunnel stretches for more than a mile carved out earth here. this modified train track for the mini motorcycle. you see electricity lines. difficult to breathe down here. a lot of d...