Stem-Cell Research

One of the main arguments against stem-cell research, using viable rejected cells, is that the science is uncertain, unknown, and as yet unproven. That is like arguing against traveling west to China in 1492; that was also an unknown--yet, Columbus ended up "proving" that the world was round, found a New World, and that people wouldn't fall off the edge.
Irrational arguments, wrapped in pseudo-logic and pseudo-science, are pitiful.
Billions, yea trillions of dollars have been, and are now being spent on America's National Security. Yet only a small percentage of the U.S. budget is being spent saving people's lives through medical research. Compare the casualty rate from war against that of people who die from cancer, diabetes, genetic problems, and disease in general and then try to justify the money and effort being spend for war. Where does the "real" danger lie?