The Sopa / Pipa debate
World Have Your Say TV is live on BBC World News. It's discussing the piracy story. Megaupload.com was shut down overnight, accused of violating piracy laws in the US. More on that story in The New York Times.
This came just a day after a massive protest against a bill designed to tackle online copyright theft.
The Sopa and Pipa bills triggered a Wikipedia blackout, supported by other sites like Google, Flickr and Facebook.
So why are some people so desperate to see Sopa succeed - and others so keen to stop it?