The President vows to finally end virus once and for all

[A Black Falcon]

Ah, I see. I'm sure you are right that cancer is really a lot of diseases, but I'd imagine that Obama would be funding research into lots of cancers, and for a major speech it's much easier to use the common saying 'cure for cancer' even if it's technically maybe a bit inaccurate... and even if we don't cure all cancer, any reduction in cancer deaths is fantastic and needed!