The current (Sept 16, 1991) issue of _The New Yorker_ has an
article about Africanized bees.  The reporter is not a bee person,
and I (several years ago I kept a few hives) found some errors in
what he wrote, but some of what he said about the situation was
interesting.  Apparently Brazilian beekeepers now much prefer the
new bees (especially the higher output), though most of the
previous beekeepers no longer do so.  Those with more knowledge
might like to see what is being said.
 
John Naples