Sodium Fluoride Drops for Infants - research

Some dentists and pediatritions are prescribing sodium fluoride drops for infants - why?!
Research:
1. Presentation against fluoride in drinking water, Austin, TX (21 Mar 2011).
2. Natural Dentistry advice.
3. Scientists and Professionals against fluoridation due to adverse biological effects.
4. Fluoride results in better teeth - ops, maybe not.
5. Fluoride layer so thin that protection is questioned (PubMed 21 Dec 2010).
6. For The Record - The ADA recommendations.