Data-Mining Moratorium Act of 2003

Data-Mining Moratorium Act of 2003 - Prohibits any officer or employee of the Departments of Defense (DOD) or Homeland Security (DHS) from implementing or carrying out for data-mining purposes any part of: (1) the DOD component of the Total Information Awareness program or any other data-mining program of DOD; or (2) any data-mining program of DHS similar or related to the Total Information Awareness program. Makes such prohibition effective from the date of enactment of this Act until the date of enactment of a law specifically authorizing data-mining by a Federal department.

Requires the Secretary of Defense, the Attorney General, and the head of each other Federal department or agency using or developing data-mining technology to report to Congress on all such activities.