I'm sure you buy all sorts of products that are built using conflict minerals, slave labour, etc. Is your ignorance a defense? Should we hold you accountable f

I'm sure you buy all sorts of products that are built using conflict minerals, slave labour, etc. Is your ignorance a defense? Should we hold you accountable for the entire supply chain that goes into what you consume? Or can we just say that you should put in a reasonable amount of effort towards avoiding this (with reasonable being defined by the legislature and the judiciary)?