Puzzled by a Love Profound

I have only been dropping in bits of commentary and opinions as a I track the march to (barring a miracle) Terri Schiavo's impending death. This has been intentional, mostly because I don't know how to be pithy about what I am thinking. Peggy Noonan has captured a part of my sense of it, however. Her last paragraph, as hyperbolic as it sounds, is a grave concern:

Once you "know" that--that human life is not so special after all--then everything is possible, and none of it is good. When a society comes to believe that human life is not inherently worth living, it is a slippery slope to the gas chamber. You wind up on a low road that twists past Columbine and leads toward Auschwitz. Today that road runs through Pinellas Park, Fla.