Hi there

I wondered if you could help me - I'm working on a radio programme about Tor and Bitcoin on Monday 2nd December. We'll be explaining both to our listeners, most of whom know very little about either.

We've got a selection of guests lined up, including Cody Wilson, from Defense Distributed (the man behind the 3D printed gun, the Liberator), who'll be talking about his latest plans for Dark Wallet - a browser app for Firefox, which will make it easier and more secure than ever to buy Bitcoins.

Also....my editor is keen to speak to people who use Tor, or have purchased items online.

It will be a short interview on the Victoria Derbyshire programme - and if you like, you can speak to us anonymously. We are used to speaking to people about sensitive subjects, and can ensure discretion.

Would you be willing to speak to us, live on Monday? If so, please get in touch: ravi.naik@bbc.co.uk or @ravinaik on twitter

Regards,

Ravi Naik