[ApplegateRanch]

But, what about a 4" potato howitzer, firing a "loaded" spud? How high does that shielding have to be? Shouldn't we spend the paltry few extra bucks for your bro-in-law to supply a secure roof, too, Mr. Wellinghoff?

Maybe a few terrorists could buy some RC model airplanes drones, and put bombs in them, and crash them into those transformers. Perhaps we should have background checks and waiting periods for buying those things! Or, maybe they could drive a trucks into them; perhaps moats & concrete barriers would help. Or....

We have to fortify every substation and switching yard in the country!

[GladesGuru]

“We have to fortify every substation and switching yard in the country!”

Perhaps simply killing all Muslims would be less expensive?

[TigersEye]

Still not good enough. I’ll slant drill under it at a shallow depth, frack the ground and drop the whole substation into a 200’ deep hole. ;^)