AFF's Doublethink

David Gregory pointed to this Presidential declaration from July:

PRES. BARACK OBAMA: We are–we’ve been under the illusion that the more health care we get, the healthier we become. And it turns out that every study shows that the question is are you getting the right care, are you getting the best care, the high quality care; rather than are you having a whole bunch of tests ordered that are unnecessary, getting a bunch of treatments that are unnecessary, staying in hospitals longer than maybe necessary? All of which drives up your costs, but doesn’t make you better.

Yet all of the liberals Gregory spoke to last Sunday were at extreme pains to insist that the new research will not involve any reduction in the number of mammograms. Suddenly, science and evidence didn’t seem very attractive. What gives? I thought conservatives were the ones who put ideology ahead of science.