> If you think the ... aren't running bio-weapons labs, then you are being too trusting at best or too naive at worst.
No, they are. But that's a bit different. Though I understand the confusion. Gain of function research can be classified as weapons. You got to develop weapons to defend against them. And of course, momentum. Especially in politics, where once funding is given it is hard to take it away, though not hard to reduce. I'm more saying if they would seriously deploy such a weapon and how serious the research is.
> What makes you think leaders aren't willing to hurt their own countries to hurt their enemies?
Some yes, some no. I think most countries have learned that the Russian strategy doesn't lead to great outcomes. Then again, you think Russia would have learned it too. But most countries realize that you can't rule over the dead. But you're right, that I may be too trusting. As far as vaccines, it is hard to keep those secret. Especially if we're talking about a country like China with a billion people, where you have to distribute at least a few hundred million. You don't think a few are going to fall off the truck? There'd be a lot of money for such a situation. Or even just the recipe. I mean vaccines don't confer 100% immunity so it still comes with big costs to yourself. But you're right, Russia keeps doing the Russian strategy. Though this is more easily done in an authoritative country. This is a lot of what jcranmer is pointing to. One more thing to consider, it is hard to invade this region after. You might think the same thing about nuclear but there's a reason they've focused on increasing the explosion and decreasing the radiation. Same reasons.
> Every major terrorist organization is or was created, funded and controlled by major nations.
Not quite true, but if they were, then the above arguments would apply there so that no terrorist organization would get the bio weapons from the big countries. You might want to ask why there haven't been any dirty bombs, despite that this should be easier, especially after the collapse of the USSR where many nuclear materials went missing. They all went somewhere (smaller countries and probably bigger countries too, to keep away from smaller countries), but we'll probably never know the full extent.
> And yet, all weapons labs in history were created by big/rich countries.
I'm not quite sure what you're getting at here. Not all weapons were created in big countries. But weapons like nuclear, bio, and others were from big countries because to have such a program is quite expensive. Currently bioweapons, of the kind we're discussing, are still fairly expensive. This may change as things become cheaper. But regardless, these types of weapons are more attractive to the crazy anarchist who wants to watch the world burn than the angry dictator. They just aren't practical in the modern globalized world.
But there's got to be a logical reason for well over a century of research in the area and not seeing it used in practice. If it were a good weapon, it would have been used.