Email Encryption Boom

Internet security in the wake of Edward Snowden's latest revelations leads this edition of the programme. We hear from two firms promising NSA-proof email and file transfers, and look at the booming business in web privacy.
Peter Morici's in our Washington studio, talking security, privacy and Porsches.
In Sydney, former banker Satyajit Das delves into the currency and debt crises threatening emerging markets.
And Martin Patience joins us from Beijing with the news that China is now the world's largest consumer of red wine.