I also sent messages to many of my female friends to fill in the survey, to ensure that if they have dense breast tissue, that they are told - to hopefully make them aware that they 'may be more at risk' of developing BC, especially as we age.
One buddy (who is a Top Young radiologist) shot me this info!! Well worth a read.
I have worked at Breastscreen and in private radiology clinics and all mammograms are independently double read by either two specialist radiologists, or a computer program plus a radiologist.
Only certain types of breast cancer are detectable on mammogram (fortunately, it is the most common one which is detected) - mammograms look for tiny microcalcifications which are only seen in a few types of breast cancer.
Ultrasound will also only detect certain types of breast cancer, and again MRI will only detect certain types of breast cancer.
Essentially, I do agree that there needs to be more awareness about the limitations of mammograms in people with dense breast tissue (the other issue is cancer is white on mammogram as is dense breast tissue white - so dense breast tissue hides it!).
I really don't want you to discourage people from having mammograms - they absolutely have their use, but again, have their limitations as they are only a screening test not a diagnostic test.