The replacement system mentioned in the article is already under development and is called Sentinel. Northrop Grumman got the contract 3 years ago. It's not a "

The replacement system mentioned in the article is already under development and is called Sentinel. Northrop Grumman got the contract 3 years ago. It's not a "from scratch" effort as it's largely based on existing technology. They aren't having to redo all the work from the last 80+ years of rocket and ICBM R&D. https://en.wikipedia.org/wiki/LGM-35_Sentinel https://en.wikipedia.org/wiki/LGM-35_Sentinel