You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[Q]: Category: PLAGUES & PESTILENCE 
Clue: Having first escaped from a South American research lab in 1957, they became a threat to the U.S. in 1990
[A]: killer bees


[Q]: Category: 20th CENTURY AMERICA 
Clue: Experts say Glenn McDuffie is the mystery man in the classic Eisenstaedt photo taken in this year
[A]: 1945


[Q]: Category: FRONT PAGE HISTORY 
Clue: An August 6, 1945 Associated Press story described this as a "Japanese army base"
[A]:
hiroshima