Speaking in tongues

In this link, you can listen to different interviews and programs in a radio series about languages. Some of the topics they talk about are:

1. The origins of language
2. Some of the mistakes we make as language learners
3. Language Variability
4. Second Language Aquisition (SLA)
5. Talking to English teachers
6. Online learning
7. English as a global language
8. Do language teachers make good language learners?
9. Business English
10. The effect of globalisation on the languages of the world
11. Favourite words