There was a good story today on NPR discussing the pros and cons of Proton therapy. Here is the link
There were no real surprises except the statement that it has not been proven to be better than any other treatments. (I thought it was.)
They just discussed the outrageous cost, $100 - $200 million, to built the accelerator and the financial incentive to recover those costs.
I'm glad PCa is getting some press.