The Commander in Chief has, of late, become something of a fact checker in chief. In town halls, interviews and meetings with interest groups, President Barack Obama repeatedly harps on what he calls the "myths" and "fabrications" about health-care reform.

The list runs from "death panels," which have not been proposed by Congress, to illegal immigrants, who would not get coverage under the current proposals, even though 55% of Americans believe otherwise, according to a recent poll. The President also routinely mentions the issue of abortion. "You've heard that this is all going to mean government funding of abortion," Obama said recently in a call to religious leaders. "Not true."

But this last statement, while technically correct, does not tell the whole story. The health-care reform proposed by House Democrats, if enacted, would in fact mark a significant change in the Federal Government's role in the financing of abortions. "It would be a dramatic shift," says Representative Bart Stupak, a Michigan Democrat who has vowed to oppose the bill because of how it would affect abortion. Stupak says dozens of House Democrats may join him in opposing a final health-care compromise unless the abortion language is changed, presenting a clear challenge to Democratic vote counters that could imperil a party-line vote.

To understand the change, one must first look at the strictly hands-off role the Federal Government has historically taken toward abortion services. Since 1976, Congress has mandated through the so-called Hyde Amendment that no federal funds will be used for abortion, effectively preventing Medicaid dollars from being used for the procedure, except in cases of rape or incest, or when the life of the mother is at risk. Private health plans offered to government employees, including members of Congress, have also been barred from offering abortion coverage, as has the military.