[ErnstStavroBlofeld]

Not Really.The United States still has a B61-11 nuclear ‘bunker buster’ in our arsenal which has a 400 kiloton yield

[Mariner]

"Most of our nukes won't do that outside a very direct hit...and none of the tactical nukes will at all".

See the word: MOST

Still, point taken.

It would take a very large air-burst nuke to penetrate 200ft of reinforced concrete at ground level.

However, by taking away the geo-political and military dynamics of nukes use, this new weapon is truly a GAME CHANGER.

Most underground installations, built at the cost of $billions, are now at risk without nukes...and that's a big deal. Even if Obama doesn't use them, the next president could.

However, don't be surprised if the dim congress denies the Pentagon request.