KNTV NBC Bay Area News At 6 August 15, 2012
pipes that has a hole measuring several inches. >> it remains hazardous for human entry. no one for the investigatiive groups are able to approach more than ten feet from where the failure occurred on monday. >> reporter: investigators have uncovered a surveillance video that shows a vapor cloud as big as the crew unit itself. they had just two minutes to run, in some cases crawl on they're hands and knees to safety. >> it was of serious concern. if that vapor cloud would have ignited sooner it would have been a much more serious incident. at the very least serious burns. >> there we...