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spec: As the Japanese name implies , it is far more concerned with Asia than with Africa , but it has recently increased its Africanist staff to nine full-time researchers . MatchPolicies may also be null , in which case no filtering is done based on MatchPolicy objects . Charlie is a stay-at-home dad who works part time as a science advisor to a popular senator , and Anna is a full-time researcher for the National Science Foundation . While touring the Exchange , Secretary Paulson engaged in an exclusive live interview with Rick Santelli of CNBC .