Exxon installed what it called new leak detection technology in the Pegasus line in 2009.

FORBES: It's Crazy To Think Keystone XL Won't Leak

The leak detection system is of concern, too, to a lot of people.

NPR: Alaskans Speak Up About Oil Field Shutdown

There were also discussions around innovation that would be more relevant to utility markets such as smart metering, leak detection, pressure regulation, water quality monitoring and more.

FORBES: Water Technologies Part II: Market Opportunities and Challenges for Water Innovation

The rerouted pipeline is replete with high-tech leak-detection systems as well, and it was recently green-lighted by Nebraska governor Dave Heineman.

FORBES: Mother Nature to Keystone Pipeline Protesters: Chill Out!