Drug possession is not strict liability, child porn is. That means you don&#x27;t need to have intention; if I email you a file and you open it, then the feds break down your door, you have committed a crime. Or rather, as long as it&#x27;s on your computer (say a website downloaded it in the background), you&#x27;re liable. Even if you have 100% solid proof that it wasn&#x27;t your fault, you&#x27;re guilty.<p>With drugs, you can at least sometimes get off with proof that you didn&#x27;t have intent.