Helping support research into possible cures for breast cancer (or any other cancer or disease, for that matter) is a good and worthwhile use of the money God has given us. Unfortunately, not every organization devoted to the cure of disease is worthy of support. Anyone who thinks it is a little disingenuous to work to save people and at the same time work to kill others might want to reconsider giving money to the Susan G. Komen Foundation. See here for a list of links noting the fact that the SGKF has given over 72 grants to Planned Parenthood. (See here for facts and links to alternative organizations to support.)
It is irrelevant that SGKF intends its funds to go for “breast services only.” Planned Parenthood performs the most abortions in the United States and a single glance at their website quickly shows how devoted they are to undermining a culture of life. Their contraceptive mentality and unquestioned support for abortion in all its forms (including its most hideous, partial-birth) outweighs any possible good they might do for women. And since there are many other organizations that help women and do not harm children or their mothers, it does not make sense to support Planned Parenthood for any reason. If you wish to support breast-cancer research, support an organization that conducts its research without hypocritically supporting the murder of the most vulnerable.