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just one day after a former fbi counterintelligence agent was indicted on charges of gross negligence , his mistress of two decades , katrina leung , was herself indicted on more serious charges of copying and possessing documents relating to the national security of the united states .
 the united states, fbi, a former fbi counterintelligence agent, his, his mistress of two decades, katrina leung, herself
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 the united states, fbi, a former fbi counterintelligence agent, his, his mistress of two decades, katrina leung, herself