Look, I think if you go back and look at -- there was an article I think around the Christmas holidays that demonstrated that roughly there had been very little to no job growth in the past decade.

WHITEHOUSE: Press Briefing

This article, published in the Christmas 2012 issue of the British Medical Journal, reviewed industry reports and medical studies to help guide physicians who may have to answer questions and fill out fitness to fly certificates for the growing ranks of aspiring space travelers.

FORBES: Doc, Am I Fit To Fly Into Space?