To address the challenges facing the U.S. Intelligence Community in the 21st Century, Congressional and executive branch initiatives have sought to improve coordination among the different agencies and to encourage better analysis. In December 2004, the Intelligence Reform and Terrorism Prevention Act (P.L. 108-458) was signed, providing for a Director of National Intelligence (DNI) with substantial authorities to manage the national intelligence effort. The legislation calls for a separate Director of the Central Intelligence Agency.