AI is more like torrents, password cracking software, TOR, ect than guns. Just because they can be used for bad or illegal things doesn't mean those software programs are bad. When companies in the past tried to get certain software banned they ran into the issue that if it could be used for legal reasons that enough for them to exist legally.

Now AI does have the issues with how it is trained so the AI itself can be problematic.

I didn't say we shouldn't talk about the problem with the AI I have issues with people making the AI the complete issue ignoring that people use the AI. It reminds me of how automakers tried to make the people driving cars the reason for deaths in car crashes.Thankfully that didn't work and automakers where forced to make cars safer making it safer on the road. It didn't stop car crashes from happening since the human element is there. Which there are things in place that partly address that (Such as Driver's license test, taking away some people's driver's license, ads reminding people of the rules of the road.). I'm annoyed that articles are doing the opposite of what car makers did. Humans are using the AI to do bad stuff mentioned that also! How can we change that? Yeah, it will probably be best to do something to the AI program, but we can't ignore the human element since they the one who are creating the AI, using the AI, and consuming the AI products.

People use guns to kill people so we need to look at both to make it happen less.

That really depends on whether the bomb making part is specific to bombs, and if their purchase of that item could be considered legitimately suspicious. Many over the counter products have the potential to be turned into bombs with enough time or effort.

If a murderer uses a hammer, do you think the hardware store they purchased the hammer from should be liable?

You can make crude chemical weapons by mixing bleach with other household items. Should the supermarket be liable for people who use their products in ways they never intended?

Everything needed to make a bomb can be found at your local Walmart. Nobody blames the gas companies when something gets molotoved.

Maybe if the tool’s singular purpose was for killing. I think guns might be a better metaphor there. Explosives have legitimate uses and if you took the proper precautions to vet your customers then it’d be hard to blame you if someone convincingly forged credentials, for example.

I would say the supplier is culpable if the tool supplied is made for the purpose of the harm intended or if the supplier is giving the tool to the person who does the harm with the explicit intent for that person to use it for that harm. For example, giving someone an AK-47 to shoot someone or a handgun/rifle with the intent that the user shoot someone with it. If the supplier gives someone a tool to use for one legit purpose but the user uses it for a harmful purpose instead, I don't think you can blame the supplier for that. For example, giving someone a knife to cut food with, and then the user goes and stabs someone with it instead. That's entirely on the user and nobody else.