These are the most frequently used words in this book.
administration
against
agency
agents
american
analysts
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army
asked
attack
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city
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defense
department
detrick
disease
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even
experts
facility
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human
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iraq
iraqi
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knew
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medical
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military
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national
nations
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officials
pathogens
patrick
pentagon
people
plan
president
production
program
project
report
research
russia
russian
scientists
secret
several
smallpox
soldiers
soviet
states
still
system
team
terrorist
test
thousand
threat
time
told
two
united
use
used
vaccine
virus
war
warfare
washington
weapons
weber
white
work
world
years