Major breakthrough by cancer research scientists in York

More men with prostate cancer could be successfully treated with radiotherapy, thanks to a major breakthrough by scientists in York. They have discovered what makes some cancerous cells so resistant to radiation.

And they have identified that a cancer drug - currently in trials - could reduce its resistance. It could give hope to the three thousands sufferers a year for whom radiotherapy is ineffective. Michael Billington talks to scientists from the Yorkshire Cancer Research Unit and survivor David Falgate.