Now playing Next world news Proof of life - al Qaeda issues video of hostages held in Sahara 18/11/2014
Now playing Next USA High on the agenda: marijuana a key issue in 2014 US Midterm elections 03/11/2014
Now playing Next world news Do drugs firms see Ebola as issue for 'poor people in poor countries'? 19/08/2014
Now playing Next world news Social media and extremism - is Europe failing to tackle the issue? 07/07/2014
Now playing Next Unreported Europe Double act: Greens dual-presidency candidates to push eco issues on election agenda 18/04/2014
Now playing Next Next Series New ESA astronaut Thomas Pesquet talks survival training, Mars missions and Tweeting from space 21/03/2014
Now playing Next My Europe Series U-Talk asks the question: Will poverty be a European Election hot issue? 14/03/2014
Now playing Next China Oil reserves ignite the explosive issue of sovereignty in the East China Sea China- Japan relations 20/12/2013
Now playing Next North Korea North Korean regime issues pictures of Jang Song Thaek's arrest 09/12/2013
Now playing Next world news Legalisation: solution of the drug issue or highway to hell? A study finds that the prices of illegal drugs have generally declined, while their purity has increased over the past twenty years... 06/11/2013
Now playing Next United Kingdom Saturated fat not a major issue in heart disease, says UK cardiologist 23/10/2013