Robert asks carefully, "Infrastructure.... You mean, oil pipeline? The oil pipeline your boss and his investment partners want to build?"
"Yeah. Exactly. You are smart."
Robert has heard of lots of bomb threats, but this one does give him a chill.
Keith seems to be very proud of it, he laughs: "Oh, isn't it perfect? Gas and oil are super flammable. They are literally fuel! I don't even have to do much, I could just light a match, throw it into an opening of the pipeline, and it will just blow up. It will explode from the border of Canada, through the Midwest, and all the way down to Texas."
The ambitious, long infrastructure built by oil industry gives crazy people like Keith a perfect chance. It is pure fuel sitting out in the open. Of course, it is a natural resource for explosion.