An interesting statistical anomaly regarding poverty and breast cancer. Before the early 1970's, breast cancer occurred at a higher rate in white women. Black women at that time were at a lower risk. Starting in the 1970's, the rate of breast cancer among black females skyrocketed, and today it is higher than that of white women. Now, a logical person would have to ask, 'Why is that?' Before the late 60's and early 70's, birth control was expensive and abortion was clandestine and expensive. This meant that more women of means and connection (usually white) had access to them and black women (usually low income) did not. Planned Parenthood was the great equalizer. Abortion and the Pill became accessible to all, and especially promoted among the lower socioeconomic class. Breast cancer became an equal opportunity killer.
No one is saying that ALL breast cancer is due to the Pill and abortion. They are both significant risk factors however, and abortion is now considered on par with family history of the disease as a risk factor. The medical profession is already aware of the artificial hormonal link. Women are asked if they take the Pill or estrogen when they go in for a mammogram. Why? Because they know it increases the risk of cancer. Estrogen has now been declared a carcinogen. As for abortion, they know of the studies and the link. It's just a matter of time before the powers that be acknowledge what the medical community already knows. Medicine has become very political. Politicians have no business hijacking it for their personal agendas. People are dying.
But the studies show that Asians lose their relative immunity from breast cancer once they move to America. There are links to discussions of this in #90 above. Diet is suspected.
Diet might also be another big difference between black and white women in the 60s, but not today. The 60s was the period of the greatest rise in the black middle class and a greater integration of the races. Traditional diets were probably replaced by fast food, chicken with more red meats. There may have also be greater urbanization and integration of blacks women into the workforce at that time, bringing with it greater exposure. I really don't study this stuff, but there are more potential explanations than just abortions.
I suspect that most of the people arguing that abortion is causing breast cancer have far more invested in the anti-abortion movement than in healthcare. I can't personally vouch for the consensus of how much weight medical experts give the pill or abortion in assessing cancer risk, but I think there's plenty of evidence that it's the abortion opponents are "hijacking it" for their agendas.