Evening News Online, 04.26.12
April 26, 2012 4:41 PM
Law enforcement officials are on high alert as messages from known terrorists urge attacks on the anniversary of Osama bin Laden's death; Also, the CIA officer in charge of the interrogation of 9/11 mastermind Khalid Sheik Mohammed describes what it was like waterboarding the terrorist; And, a recording of Louis Armstrong's last trumpet performance has been rediscovered after 40 years .