An internal CIA investigation found no evidence the agency knew anything about alleged drug smuggling activities at an airport in Mena, Ark., where the CIA once held a secret training exercise. "No evidence has been found that the CIA was associated with money laundering, narcotics trafficking, arms smuggling or other illegal activities at or around Mena, Ark., at any time," said the report. The investigation was conducted by Frederick P. Hitz, the CIA inspector general. The agency released a six-page unclassified summary of his findings. CIA Director John M. Deutch ordered the investigation last spring in response to a request in February from House Banking Committee Chairman Jim Leach (R-Iowa).