1.   A plant still needs power to keep coolant over the core to prevent radiation release.

2.   After the release of the study, Dr. Cobb said he believed the Plymouth area was safe, pending an accidental radiation release.

3.   But the risks of radiation releases during and after wildfires at contaminated nuclear sites are still not thoroughly understood by scientists, let alone the public.

4.   But the risks of radiation releases during and after wildfires at contaminated nuclear sites are still not very well understood by scientists, let alone the public.

5.   He calls for increased American investment in verification tools, including satellites, seismic monitors and instruments for detecting radiation releases and nuclear electromagnetic pulses.

6.   In fact, a dirty bomb could appear to be simply a conventional explosion and no radiation release immediately noticed.

7.   Over the years, the radiation releases have shrunk dramatically.

8.   State and federal officials said they detected no radiation releases from Hanford, although further tests were planned.

9.   There is no chance of a massive radiation release into the environment, Bailey and other officials said.

10.   There was a possibility of greater radiation releases.