Why do you keep obsessing about birth control? Santorum is talking about the free exercise of religion, which includes the right of religious institutions to hold to the doctrines they proclaim. Obama is simply trying to nationalize the Catholic hospitals that now provide one-fourth of the medical care in the USA. He defines medical care to include contraceptives and abortions. Obamacare gives him the authority to do this. He could tomorrow order all hospitals to perform later-term abortions,. and maybe infanticide. And despite all the denials about “death panels,” he could institutionalize euthanasia for the deformed, the sick and the elderly. Oh, he wouldn’t dare, right now. But he arguably has the power.
The right answer should have been, and always will be, "Preventative birth control is none of the state's business, nor should the state ever mandate that someone else pay for it other than the person who wants it."