This isn't specific to the DMCA. Common carrier protections are for all criminal liability. It's basically a restatement of common sense -- if you don't know it

This isn't specific to the DMCA. Common carrier protections are for all criminal liability. It's basically a restatement of common sense -- if you don't know it was happening why should you be liable? But if you start acting like you are in control then a court gets to assume that you are in control. https://www.law.cornell.edu/uscode/text/47/chapter-5/subchapter-II/part-I https://www.law.cornell.edu/uscode/text/47/chapter-5/subchap...