https://www.cnet.com/news/elon-musk-wants-to-dig-sewers-in-your-city/

Thousands of mayors and city officials from all over the US reportedly gathered in Los Angeles for the annual summit, where LA Mayor Eric Garcetti sat down with Musk, also the CEO of Tesla and SpaceX, to talk about future projects.

"We're looking to revolutionary implementations of advanced tunneling and I think we can really transform the transportation network of America, but key to that is the support cities," Musk reportedly said.