Hey molo

,
Yes, I do have a similiar thought with you regarding this. Certain alien factions have been looking (scrutinizing, etc....you fill in your word) at us for quite a long time, BUT, it never grew until the extent that, you know it seems like the entire families of the Cosmos are now aware of our existence (and our stupidity too

)!
You are right, statistically, UFO sightings, stories etc have increased into a significant and incalculable amount (not forgetting the introduction of abduction & other events) ever since the first of the atomic bombs were dropped. There are a few theories, that of course needs some consideration at the very least.
One is that they are concerned with our (mainly our politicians and elite-heads) immature way of handling these sort of weapons, and are trying thier best to deter (or.....help us realize the absolute destructive effects of it) us from using it and, destroy ourselves.

From this point, the one Grey theory comes into light, that being the Greys are coming from the future, and they being the "future" us, to forewarn us or at least preparing us for the aftermath of a future nuclear holocaust (which is clear now from how our world is heading!!

). Other factions (Sirians, Errans, Vegans etc....) are also contributing too, but for other more specific purposes.
Two, is that thier prophecies (or predictions, forewarning of our brutal future, etc...) are coming to life now. Now according to the, let me try to recall, was it the Hopi or the Incan?? Can't really recall, sorry

. Whichever one it is, the first droppings of the A-Bombs were the prophetic sign of an impending nuclear war in the near future. So I'm not saying that the signs are similar to these ETs, but the concept is rather similar, and right now these ETs are guiding us spiritually, whether it's the psychic-message awakenening type of technique (used by the Spacepeople, aka The Galactic Federation) or abduction, or astral guidance, I'm not putting the full-stop here. But NOTE: they cannot stop us from having a nuclear war in a direct fashion, ie. intervene and destroy all these nuclear-involved nations in the future (or even now

) as this will massively inflict our natural process of Life and Spiritual Evolutionary Path, and Kamma. All they could do is to try guiding us, bit by bit, steer up our awareness, and let us take off from that point onwards, with that seeing the entire world and Cosmos to "upgrade" ourselves (can't find a good word for that, sorry).
And then we have the more common one, that is being that we've attracted some bad company from a particular somewhere from the Universe (the other Grey theory), and now they're here to manipulate our immaturity and greed, to further thier wants and desires.
But one thing to note too, maybe, just maybe, that the A-Bomb event was just one of the many reasons for the increase of ET encounters (and the arrival of these ETs onto, into, and deep-into our planet). One of the many others, could well be a notification of the Grand Cycle cosmic event (or the end-age event, as depicted in the Mayan calendar). Maybe it was time that we've been notified of this upcoming event/s, and prepare ourselves spiritually. This is just my thought, who really knows?
Oh, I think I wrote too much and I'll just stop here.

But molo, it's a great theory, it may be wrong (for some) but hey, if it spreads out the vision and touches Infinitism, why not?

I'll see all of you again, ta-da.
**Yeah, one note before i blaze off for good, it's interesting to note that the late Albert Einstein got this theory too (not exactly, but....). Now he suggested that with the deployment of those A-Bombs could well distort other factors, ie. sub-matter realities, or the flow of the Cosmos (ie. Cosmic Consciousness, etc..), or something like that, and therefore,
attracting the attention of possibly, ETs or other lifeforms in the Cosmos (or at least, in the boundary of the affected areas of the A-Bomb effects). I'm no physicist so I'm sorry, I can't replay everything in detail.

But there was a document (I've seen somewhere before, or maybe stuck somewhere in my HDD?

) that reported Einstein was actually in the US, several years after the A-Bomb event, to further research this particular theory. It seems that he's right again.....