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What sentence from the passage shows the author's bias?


“Spies, however, aren't just in make-believe; every day in the real world, spies are watching, listening, taking pictures, and reporting their findings.” (paragraph 1)


“International espionage—or spying—is a messy and complex business that has been around for as long as there have been governments (about five thousand years).” (paragraph 4)


“Leaders of the world's governments have to make life-and-death decisions on a daily basis.” (paragraph 2)


“Usually, spies have contact with their controller and no one else.” (paragraph 6)