This is “Ask an Expert,” a special mini-series where our constitutional experts answer your civil rights and civil liberties questions. For this edition, we are diving into free speech and talking to expert Ben Wizner, the Director of the ACLU’s Speech, Privacy and Technology project.

Last week for our first episode, we established our free speech footing, defining exactly what free speech is and isn't. This week, Ben is back to break down free speech as it exists online and on social media in 140 characters or less, just kidding. Social media has undoubtedly presented new free speech challenges to consider, and consider them we will.

We have been sourcing free speech questions from you over email, social media and our phone line. We've sorted through the questions and we're ready to dive right in.