Detailed text transcripts for TV channel - FOXNEWS - 20120309:17:39:00
Time. you know, you take a look at the scope of the job, you know, the sheer size of it, um, you try and make sure that some of that changes before you go home at the end of the day. come on, dig in there. get mean with it. >> reporter: warfield wore a helmet camera to give us his view, spending nine hours a day without natural light, with air pumped in from above, clearing and building critical paths for sewers, steam, water and trains. it's damp, cold, muddy and extremely loud. dynamite is used daily, and heavy equipment like these muckers are constantly maneuvering the narrow shafts. >> con...