Death of the death penalty? @CharlieSeaWolf and @lembitopik discuss

Drugs company Pfizer has blocked use of its drugs in lethal injections for executions. But is the ban another step towards the ending of the death penalty - a time when it is viewed as morally unacceptable throughout the world? Or are US states that retain the death penalty right to fight on - and even consider alternative forms of execution like the electric chair and firing squad? Stephen got the views of commentator Charlie Wolf and former MP Lembit Opik