A few days ago, Prof. Cirac was interviewed in a Catalan TV channel about his work on quantum theory of information. Prof. Cirac explained the method based on quantum cryptography that he and his team have been developing during the last few years, which makes sure that the information can be neither intercepted nor decrypted. Actually the information is not physically transmitted, but just appears at the receiver side.

In addition to the method itself, I was surprised by the clarity with which Prof. Cirac introduced quantum physics and reviewed some of its paradoxes. In what follows, you can find a link to the video. Unfortunately, the interview is only in Catalan (interviewer) and Spanish (Prof. Cirac).