The nation’s leading breast-cancer charity, Susan G. Komen for the Cure, is halting its partnerships with Planned Parenthood affiliates — creating a bitter rift, linked to the abortion debate, between two iconic organizations that have assisted millions of women.

The change will mean a cutoff of hundreds of thousands of dollars in grants, mainly for breast exams.

Planned Parenthood says the move results from Komen bowing to pressure from anti-abortion activists. Komen says the key reason is that Planned Parenthood is under investigation in Congress — a probe launched by a conservative Republican who was urged to act by anti-abortion groups.

…Planned Parenthood said the Komen grants totaled roughly $680,000 last year and $580,000 the year before, going to at least 19 of its affiliates for breast-cancer screening and other breast-health services.

A counterproductive and short-sighted move on the part of Komen. A politically-motivated investigation that will likely turn up zero evidence of the misuse of funds by Planned Parenthood should not result in the denial of breast-cancer screening services to women who otherwise do not have access to such services.