Local Japanese milk and spinach food products were found to be contaminated by radioactive iodine which has only an 8-day half life. Thyroids of children are at risk from this type of contamination, which can easily be countered by the ingestion of stable iodine pills and tablets.
Progress continues to re-connect electrical power to the nuclear plants at the complex. Reactors and spent fuel storage ponds continue to be cooled using non-conventional means.
The Fukushima Daiichi nuclear crisis has stabilized to a Level 5 on the INES scale. (click on images to enlarge, source here)
Past nuclear incidents rated using INES scale:
Scientists at Berkeley explaining San Francisco area recent radiation measurements and demonstrating the potential of nuclear fuel components melting at Japan's reactors in this video:
A video explaining the earthquake and tsunami impacts on the nuclear facilities:
Status of nuclear plants as of 10:00pm on Sunday, March 20 (source here):
Full detail update here.