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Political career Walker was born in Kearny , New Jersey , and has served mostly in Latin America , notably Bolivia , Brazil , El Salvador , Honduras , Peru , and on the Argentina desk at the US State Department .
 Walker, Kearny , New Jersey, Latin America, Bolivia, Brazil, El Salvador, Honduras, Peru, Argentina, US State Department
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Walker, Kearny , New Jersey, Latin America, Bolivia, Brazil, El Salvador, Honduras, Peru, Argentina, US State Department