Sabotage at Nogales station puts focus on threats to grid

Sabotage at Nogales station puts focus on threats to grid:
".....The Wall Street Journal publicized a detailed account of the assault in February describing how saboteurs cut telephone lines into the plant. 
Then they "surgically knocked out 17 giant transformers" by shooting at them with sniper rifles for 19 minutes, the Journal reported.
It took 27 days to return the substation to normal, and the attack was described by Jon Wellinghoff, then-chairman of the Federal Energy Regulatory Commission, as "the most significant incident of domestic terrorism involving the grid that has ever occurred."
In March, Arizona Corporation Commission Chairman Bob Stump and Commissioner Bob Burns sent a letter to Arizona utilities asking about security changes they were making in the wake of the San Jose attack.
"The incident in Nogales is a troubling development that highlights the pressing need to focus our state and nation's attention and resources to increasing utility security at all levels," Stump said Thursday.
"Physical attacks against critical facilities will, I fear, become a staple of domestic and foreign terrorist attacks over the coming years.
The potential of shutting down an entire city or even the entire Eastern Seaboard will be enticing to our enemies.""