Construction has begun in Las Vegas on what will be the fastest train line in the United States. The line will connect to existing rails in Los Angeles, with the trip between the two destinations expected to take about two hours. Elise Preston has more.

"CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the CBS Evening News every weekday night at 6:30 p.m. ET on the CBS Television Network and at 12 a.m. ET on the CBS News app.

Subscribe to the "CBS Evening News" YouTube channel:    / cbseveningnews  
Watch full episodes of "CBS Evening News": https://cbsnews.com/evening-news/full...
Follow "CBS Evening News" on Instagram:   / cbseveningnews  
Like "CBS Evening News" on Facebook:   / cbseveningnews  
Follow "CBS Evening News" on Twitter:   / cbseveningnews  
Download the CBS News app: https://cbsnews.com/mobile/
Try Paramount+ free: https://paramountplus.com/?ftag=PPM-0...

For video licensing inquiries, contact: [email protected]