Oh, yes: AboveTopSecret.com, the World Weekly News of conspiracy websites.
For the record, while the USAF may have conducted a study of what it would take to deliver and detonate a nuclear weapon on the surface of the moon (and there were some concerns in the 'Sixties that the Soviets would get around atmospheric testing restrictions by testing weapons on the far side of the moon, which was patently absurd at that time) what is described in the linked article is absurd. A detonation on the moon would not produce a pyrocumulus mushroom cloud (much less “…so large it would be visible on earth”) as that is an atmospheric effect due to extreme heating and a resulting column of low density superheated air rushing upward until it stagnates. If this is the claim by “the physicist who fronted the project” then I have to question the fundamental credibility of the source.
There is a world of difference between an informal proposal or a study and an actual plan which dedicates funding, hardware, and personnel to a defined mission.
Also cites with big flashing pop-ups trying to load malware onto the viewer’s system do not enhance credibility. Just saying.
Out of curiosity, what would it look like from earth, to the unaided eye, if we detonated a large nuclear device on the surface of the moon? Something tells me it wouldn’t be that spectacular.
Would it look like much more than a point of light appearing for a second or two?