Chiming in with Kevin and Steve:
"At the end of World War II, the NAS (National Academy of Sciences) began to advocate better research and development of prosthetics. Through government funding, a research and development program was developed within the Army, Navy, Air Force, and the Veterans Administration"
Source Okay, enough for me -- this reminds me too much of trying to reason with my 5-year-old nephew: I talk till I'm blue in the face, and he repeats the same nonsense over again.