The honest answer is that no medical intervention - trial or not - is 100% risk free.

BBC: The 'myth' of the clinical trial guinea pig

The study is known as PIVOT -- the Prostate Cancer Intervention Versus Observation Trial, and was first presented more than a year ago at a cancer meeting in Washington, D.

MSN: Prostate cancer surgery fails to cut deaths in study

Amid the glee, however, is the offsetting fear that the Microsoft trial could lead to more government intervention in the computer industry.

ECONOMIST: And the winners are

His intervention, following a plea by the priest concerned, also resulted in the halting of a church trial.

BBC: Archbishop Nichols says sex abuse anger 'justifiable'