Question

The Office of the Director of National Intelligence was created in 2005 as a result of the September 11, 2001 attacks. What does this office do?

Answer 1

The easiest thing to do is visit the official site which is found right here:

Office of the Director of National Intelligence
http://www.dni.gov/index.php/about/mission

Basically, the Director's job is to oversee and create the processes focused on bringing together all of the intelligence gathering capabilities of the US' many fields from the Air Force to the FBI.