birth control

AP Photo/American Cancer Society

Seattle researchers have found a troubling link between certain kinds of birth control pills and a risk of breast cancer. But the lead scientist says women should not panic.

Melinda Gates is promoting access to contraceptives around the world, and urging everyone to believe it's not a controversial step.

She's co-hosting a global summit on Wednesday in London, along with the British government.

The Bill & Melinda Gates Foundation hopes to overcome religious and cultural resistance by saying birth control is simply one option that women want.