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Center for Security Policy Vallely serves as the Military Committee Chairman for the Center for Security Policy in Washington , D.C. and occasionally writes columns and lectures on the War on Terror .
 Security Policy Vallely, Center for Security Policy, Washington , D.C.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Security Policy Vallely, Center for Security Policy, Washington , D.C.