Terrorism and Organized Crime

You are a law enforcement executive, and you are asked by the Police Executive Research Forum (PERF) to prepare a white paper related to terrorism and organized crime from a command and control perspective. Address the following in your paper:

Which lead agency in the United States is responsible for investigating terrorist organizations and attacks?
What is the function of the Office of the Director of National Intelligence regarding terrorism and organized crime?
What attack methodologies and delivery methods are used by terrorist organizations?
What counterterrorist and counter-organized crime methods are available to the United States?