user2638180

@sempaiscuba, I got the horrible point from the wikipedia entry about that in Spanish wikipedia, specially the part that explains :". It is recorded that prostitutes in Madrid could be reproached with the practice of fellatio, insultingly, against each other", I know that single fact cannot be generalized, but that even prostitutes get to insult other prostitutes for practicing fellatio gives the feeling that it was frowned upon to the extreme, I'm linking the translated entry to give context: goo.gl/BZ3ZQ7

Millions of them are to invade but they are doing it strategically as seen in my comment for Ister answer, they never bothered into developing weapons for destruction as in their home planet most of their creatures were basically inmune to physical damage, a dynamite cardtridge would be needed to slightly hurt the weakest of that creatures, but discovered that could control them by certain odors, certain food, etc, when they finally decided to conquer outside space they were into using what they had been doing for lots of millenia, they didn't even consider destruction weapons.

Yes, guess it would be valid, as long as the drone can recognize them, which I don't think would be easy but maybe we have enough tech for that, apart from that, point is if we have enough resources in order to keep lots of drones wandering.

@John Locke, I edited to put present, whatever we have at our disposal right now. Yes the drone idea seems nice, but even if we get to spy them I doubt if we have enough resources to make something wander searching them and identifying them properly.

@John Locke, what I meant is that if you prepare an ambush with snipers, but one of the aliens make that mind controlling sound before with a good equipment before being shooted, one that would be as loud as ship horn, which looks like that could be heard from a higher distance than a train horn and that's already 8 km (quora.com/…), would automatically leave them mind controlled even if they were to have ear protection.

@John Locke, as far as I know a ship horn can be heard from kilometers away, even if he were to have ear protection I doubt he wouldn't listen anything, also there's a risk of them showing the mind control image, via a huge hologram, and in any case if they are in group and one of them is killed but some of them are alivee, they'd automatically try to use any mind control method at the biggest scale they could, which would likely result in greater loss for humans.

My point of defense is about killing them, so I guess I should specify it.

I haven't gone into detail, but they can by showing certain images, emitting certain sounds, sending chemicals to the air that can be breathed, some chemicals that if ingested would produce the effect and substances that if touched would produce the effect. As a beginning I think it's enough detail.

Ah, you are right I didn't realize that, I'll vote for closing this question then, thanks for your answer.

Breitbart cites as source www.thewrap.com web site where it's corroborated, as if it's notable or not I think it fulfills the rules for asking on this web site, but I might be wrong, so it's up for an admin.