I don't know that there is a clear line. For people who use social media, we don't do any sort of search and seizure. We're looking at records that are in the public domain; therefore, if we find that we have to do some searching, like a traditional search pursuant to how searches are generally understood, we would get a search warrant. But it's Facebook, Google, and those kinds of things.
On October 6th, 2016. See this statement in context.