Owen Sharp, of the Prostate Cancer Charity, says the Abirateron drug allows prostate cancer patients to have "a full and active life."
The drug "improves the level of pain the men have...and means they can be full participants with their family and everyday activity at a time when they are coming towards the end of their life," he says.
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Armed police have taken part in a dramatic training exercise aimed at recreating the chaos of a Paris-style terror attack.
After a remarkably mild November - a notable mild start to the new month.
The Facebook founder revealed the plan as he and wife Priscilla Chan announced the birth of their baby daughter, Max.