How US nuclear force modernization is undermining strategic stability: The burst-height compensating super-fuze, by Hans M. Kristensen, Matthew McKinzie and Theodore A. Postol, March 1, 2017, Bulletin of the Atomic Scientists.
Ah yes, that would be the infamous Bulletin of the Atomic Scientists" group of USSR groupies...
Hans Christianson is a POS that worked for fas.org. Have run into him before on past work when he tried obtaining a shitload of documentation through FOIAs.
Sounds like a nifty invention!
From the link, explaining the invention's utility:
As a consequence, the US submarine force today is much more capable than it was previously against hardened targets such as Russian ICBM silos. A decade ago, only about 20 percent of US submarine warheads had hard-target kill capability; today they all do. (See Figure 1.)
