Almost five years ago, America's Congress cut research funding for a controversial bunker-busting nuke called the Robust Nuclear Earth Penetrator.

几乎就在五年前，美国国会削减了一种引起争议的掩体核弹——坚实型核钻地弹——的研究经费。

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This is especially worrisome since some of the research in question would explore whether a Robust Nuclear Earth Penetrator (RNEP) could be fashioned to penetrate deep underground before detonating.

CENTERFORSECURITYPOLICY: Empty words?

The President thinks we need to design a Robust Nuclear Earth Penetrator capable of holding at risk the growing number of deeply buried sites used by North Korea, Iran and the like to conceal weapons of mass destruction and command-and-control facilities.

CENTERFORSECURITYPOLICY: Hobson��s choices (cont.)