; and (2) carry out additional duties as assigned or delegated by the Director, which are within the statutory authority of United States Citizenship and Immigration Services. (g) Fraud detection and national security directorate There is established within United States Citizenship and Immigration Services a Fraud Detection and National Security Directorate. There shall be at the head of the Fraud Detection and National Security Directorate an Associate Director who shall seek to prevent immigration benefits from being granted to individuals who pose a threat to national security or public safety, or who defraud the immigration system, in a manner that is consistent with the immigration laws (as such term is defined in section 101(a)(17) of the Immigration and Nationality Act ( 8 U.S.C. 1101(a)(17) )). (h) External affairs directorate There is established within United States Citizenship and Immigration Services an External Affairs Directorate. There shall be at the head of the External Affairs Directorate an Associate Director who shall— (1) oversee and coordinate official United States Citizenship and Immigration Services communications to both internal and external audiences, including applicants, petitioners, and beneficiaries of petitions for immigration benefits provided by United States Citizenship and Immigration Services, the legislative branch, and the general public