Biden administration officials are expressing concerns that the slow progress in the development of a nasal vaccine to Covid-19 within the U.S. could pose a security risk, as China, Iran and Russia accept their own vaccines via the mouth or nose. Although oral and nasal vaccines are being researched across the U.S., none are near to being released onto the market since Congress hasn't yet approved additional funds for studies and developments. Pharmaceutical companies of all sizes are not investing in the next generation of vaccines due to the fact that they don't have the potential for profits. China already…