Sorry if this has been already addressed and I'm just being repetitive. Mormons have a different view from most pro-lifers on stem-cell research because life doesn't begin at conception. It began in this "pre-conception" spirit world.
http://www.slate.com/?id=112974
"But Mormon doctrine holds that each person lived as a spirit child of God prior to being born and receiving a physical body on Earth. From this point of view, it makes no sense to say that life begins at conception. Instead, Mormons would say that life on earth begins when the spirit and body are united.
In his testimony, Sen. Smith made this very point. Without calling attention to his Mormon beliefs, he cited Genesis 2:7, "And the Lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul." Smith went on to explain, "This allegory of creation describes a two-step process to life, one of the flesh, the other of the spirit." He compared stem cells to "the dust of the earth —they are essential to life, but standing alone, will never constitute life." As Smith portrayed it, the onset of life—the union of spirit and body—takes place when the embryo is implanted in a womb."
As far as I understand Sen Hatch explained it that this "stem cell resreach" is from discarded menses!