11:00 part of a 3-day president's day weekend on c-span 3's american history tv. >> >> host: jon wellingoffjoining us from san francisco this morning to talk about a "wall street journal" front page story last week, mystery assault on the power grid. general wellingoff what happened? >> guest: good morning, greta. what happened was basically a team of individuals went into first a number of cable vaults, a number of hundreds of yards outside of a high-voltage transmission substation, cut the fibro optic cables are the 9/11 traffic there, then moved the cable vaults and moved into a pasture adjacent top the substation set up firing positions and fired approximatelibly 120 rounds from ak-47-style weapons into the substation and knocked out 17 transformers. >> host: who was involved? >> guest: well, we don't know. the fbi is continuing to investigate. the only evidence that was left were 120 shell casings, that had no dna or fingerprints. there was virtually no evidence of these individuals. there were some video frames from cameras that the utility had that were extremely grainy. can see the

jon wellingoff, would your company benefit from any reforms that were put into place to protecting the grid system. >> guest: no, i done do work in this area with respect to physical security that is not my client base. >> host: why do you think he took issue with the evidence of the ak-47. >> guest: i don't know. my under standing the round is, in pack, an, a k-type round. don't understand what the point was there. was a specific round to have low enough velocity to instead penetrate the cooling fans which was their target. they targeted the cooling fins. >> host: ok. we're talking to jon welling how far, hes the former chairman of the regulatory commission and served from 2009 under the bush administration then became chairman in 2009 and served before that under the bush administration then carried over to the obama administration. the wall street journals the topic. rebecca smith had the story. a must ry assault on a power grid back in april of 2013 in california. susan is in california, san diego, go ahead, susan. >> caller: yes, good morning. thank you for c-span. mr. wellingoff,

. >> >> host: jon wellingoff is joining us from san francisco this morning to talk about a "wall streetjournal" front page story last week, mystery assault on the power grid. general wellingoff what happened? >> guest: good morning, greta. what happened was basically a team of individuals went into first a number of cable vaults, a number of hundreds of yards outside of a high-voltage transmission substation, cut the fibro optic cables are the 9/11 traffic there, then moved the cable vaults and moved into a pasture adjacent top the substation set up firing positions and fired approximatelibly 120 rounds from ak-47-style weapons into the substation and knocked out 17 transformers. >> host: who was involved? >> guest: well, we don't know. the fbi is continuing to investigate. the only evidence that was left were 120 shell casings, that had no dna or fingerprints. there was virtually no evidence of these individuals. there were some video frames from cameras that the utility had that were extremely grainy. can see the firing from the ak-47's and some of the bullets hitting the chain link f