@oristarA,
oristarA wrote:(1) "More" what in "to find out more"? More mutaions? Or more details about the mutation that has been found?
The second one: More details about the mutation that has already been found.
That part of the article was talking about mutations that we don't presently know much about, and don't know if the mutation causes cancer or is harmless. It may even turn out to be helpful.
It takes time to conduct more research before we find out what the nature of the mutation is. If the mutation causes someone to get cancer while they are waiting to find out if it is dangerous, they might be upset about having waited around doing nothing when they could have been having their breasts and ovaries removed to prevent the cancer.
oristarA wrote:(2) there can be recriminations between doctors and patients?
Not always, but it happens. Lawsuits as well.
There can also be recriminations between doctors and/or scientists.