BART wades into Twitter tussle with Elon Musk over tunnels

BART has picked a Twitter fight with Tesla Ceo Elon Musk. The issue has to do with underground tunnels - and what type of transportation should use tunnels. 

It all started Friday, when Musk tweeted a FAQ page bout the Boring Company digging tunnels and how tunnels are the safest place to be in an earthquake. 

A Twitter user replied, saying tunnels are for trains, not cars. 
Musk fired back, saying  “trains should be on surface, cars below.”

That’s when BART chimed in.

A tweet on the agency’s account read, "we carry 28,000 people per hour through our Transbay Tube under the bay because of the capacity of a train. That's nearly twice as much as cars over the bay. Why wouldn't you prioritize something that carries far more (and safely with automatic train control) over cars?"

BART even went so far as to include graphics to demonstrate how the Transbay Tube carries way more passengers than cars on the bay bridge.

Musk never responded to BART.