Nigger Bees

https://en.wikipedia.org/wiki/Africanized_bee
Beekeepers can also discover that their own colonies have suddenly become Africanized due to cross-breeding with a newly arrived feral colony of Africanized bees somewhere in the vicinity. This is most likely to happen when a hive's queen is old or dies. The hive will produce a new queen who will then take a mating flight, and it is during this mating flight that drones from the wild Africanized colony will manage to mate with the European queen, almost always resulting in the Africanization of the existing colony.

http://www.mobilization2-21.com/bees.htm
So how is it that some dumb scientist cross-bred some wild, super-aggressive bees from somewhere in Africa with some "civilized" European bees and created the people-killing monsters now widely known in America as "Africanized honey bees?" One would get the impression that these are all a bunch of spear-carrying, people-hating, super-strong, Mandingo-types of the bee world. The racist American mind has struck again.