Is deep sea mining the answer to a greener future?

From the BBC World Service: In the push for green energy, Norway has just proposed the exploration of its waters as the sea bed has material worth trillions of dollars. Andreas Bjelland Eriksen is Norway's minister for energy and petroleum. Elettra Neysmith talks about the death of John Goodenough, the creator of the lithium-ion battery. And finally, BBC Reporter Emir Nader reports on Captagon, a highly addictive drug ravaging the Middle East with links to leading members of the Syrian regime.