Periodically, a disembodied voice identifying itself as Rachel would lead the audience in mass movements.
"Terrorism is coming," the voice identified as Mr. Hussein's is heard to say.
But do not expect it to become a strident voice identifying strongly with one side or the other on Capitol Hill.
Last year, prosecutors stunned the courtroom with a tape of a radio intercept in which a voice identified as the major's is heard reporting that his troops had caught additional Muslim refugees, "some with guns and some with mines".
While Mr. Kessner said that he worked hard to manage the buildings, and repaired many of their problems, The Village Voice identified him as one of the 10 worst landlords in New York City in 2006.
A voice identified as Mr. Hussein's is heard on the recordings he was said to have made in his presidential office during the 1990's, ruling out any such strike by Iraq.
And there was a recorded phone call to a police hot line in which a man, his voice identified by a detective as Mr. Muhammad's, demanded money in exchange for stopping the shootings.
The Corzine campaign said it had received at least 50 complaints from suburban Democrats who said they had received calls in which a recorded voice identified itself as a caller for African-Americans for Corzine and asked for their votes.
In an audio recording released by Al Jazeera, a voice identified as that of Abu Mossab Abdelouadoud said that to ensure the safety of the hostages, who were kidnapped in September, French troops must also withdraw from Afghanistan.
