Michael Hayden : Snowden will likely be most damaging leaker in American history . Comment: Aldrich Ames and Robert Hanssen identified American penetrations for ultimate execution by the Soviets . Hayden says U.S. economic rivals will use it to disadvantage American companies . He says other nations will doubt whether the U.S. can do anything in secret .
Michael Hayden : Snowden will likely be most damaging leaker in American history . Comment: Hayden says U.S. economic rivals will use it to disadvantage American companies . He says other nations will doubt whether the U.S. can do anything in secret .