Another plot to cripple the Trans-Alaska Pipeline was foiled recently, reports the Philadelphia Inquirer (via Reuters). A Montana judge gets credit for apprehending the plotter, in Idaho, although Oregon and Washington are the main consumers of oil from Alaskan oil.

A year ago, we released the 2005 Cascadia Scorecard, which detailed the profound vulnerability of Cascadia’s energy infrastructure (pdf), including the Trans-Alaska pipe.

The latest plot—which involved blowing up propane trucks along the pipeline, among other acts of sabotage elsewhere—doesn’t seem to have been as far along as one in 1999 or one in late 2003. (Both described here (pdf), on pages 30-31.)

The larger story, of course, is that Cascadian officials have done little to secure its energy system in the past year. Pending energy security measures in Washington and Oregon may be bright spots on the horizon.