Not really breast cancer prevention

In today's newsmedia much ado is being made about a study published in the Journal of Clinical Oncology about the increasing but small number of women who are opting for double mastectomy to prevent recurrence in the second, intially unaffected, .breast. The author states "Some choose the procedure because they "believe having their opposite breast removed is somehow going to improve their breast cancer survival. In fact, it probably will not affect their survival," A co-investigator states ""Some would argue that the need for aggressive surgery should be going down, not up." In addition, cancer experts estimate "that women who get cancer in one breast each year have [a] 0.5 to 0.75 percent chance of the cancer reappearing in the second breast." But removing the second breast "does not improve their chances overall."