"Jim Yanik" wrote in message
.. .
"Dan Welch" wrote in news:3fd7c4ad$1_2@mk-nntp-
1.news.uk.worldonline.com:



Cobalt bombs were to be extremely DIRTY enhanced-fallout bombs,Cobalt-60
being a hi-level radioactivity isotope. I don't know what the half-life is
for it,though. Reasonably long,I suppose.


About 5 years IRC

Keith