PG&E is testing a new piece of equipment that looks at pipe corrosion. It could be a giant leap forward for keeping an eye on gas lines and catching problems before they turn into disasters. It's the same laser technology used in reverse engineering, gaming, and in medicine to map the human body. It can be used on virtually any object. PG&E is using it on its pipes.
Source: ABC Web Portal, January 22, 2013, by Heather Ishimaru