Yeah, I admit my comparison to the subway costs was not fair. Still, let them try something new. What have you got to lose? If the R&D work they're doing here

Yeah, I admit my comparison to the subway costs was not fair. Still, let them try something new. What have you got to lose? If the R&D work they're doing here results in even marginal improvements in tunneling technology, I'd call this a win for everyone.