Last, many components of the utility industry are difficult to secure. For example, there are over 130,000 miles of electric transmission lines in the United States (Smith, XXXXXXXXXXThere are also...

Last, many components of the utility industry are difficult to secure. For example, there are over 130,000 miles of electric transmission lines in the United States (Smith, 2014). There are also thousands of miles of natural gas and water pipelines in the United States that are vulnerable to natural and man-made events.