Former British Army Officer - Major Richard Streatfeild
Is it time to acknowledge failure, as the British military pull out from Afghanistan?
Brazilian Environment Minister - Izabella Teixeria
Agribusiness and urbanisation are threatening Brazil's rainforests. Are they safe?
Mining CEO - Daphne Mashile Nkosi
How far has the country's mineral wealth benefited the poorest in South Africa?
Musician and Former Child Solider - Emmanuel Jal
What lies behind the new wave of conflict in South Sudan and how can it be stopped?
Suspended Head of South African Trade Unions (COSATU) - Zwelinzima Vavi
Is South Africa’s progress being held back by the powerful trade union alliance COSATU?
Artistic Director/Lead Principal, English National Ballet - Tamara Rojo
Can Tamara Rojo triumph over tradition?
Chairman, China International Capital Corporation - Jin Liqun
How worried should we be about the Chinese economy?
President of Bulgaria - Rosen Plevneliev
Can Bulgaria, and the EU as a whole, afford to get tough with Moscow?
Spokesman for Vladimir Putin - Dmitry Peskov
With international pressure mounting, does Russia stand to lose more than win?