http://www.nytimes.com/2009/10/03/business/media/03extort.html?em The Manhattan District Attorney Robert M. Morgenthau, saying his office would not tolerate extortion against anyone rich or poor, announced charges Friday morning against a CBS employee, Robert Joel Halderman, who is accused of trying to extort $2 million from the late-night talk show host David Letterman. Mr. Letterman first revealed the extortion attempt on The Late Show, on CBS on Thursday night, describing how he had been approached by a person who wanted $2 million from him not to go public with information that Mr. Letterman had been in sexual relationships with women who work on his show. Mr. Letterman admitted to the relationships on air, as he said he also did to a grand jury, but revealed that he had alerted the district attorneys office immediately after receiving the first demand last month. Mr. Halderman, an Emmy Award-winning producer for the CBS program 48 Hours Mystery was arrested outside the CBS studios in Manhattan on Thursday and charged on one count of first-degree attempted grand larceny, which carries a maximum sentence of 15 years. He will be arraigned on Friday afternoon at Manhattan State Supreme Court. New York will not tolerate the coercion or extortion of anyone, be the victim rich or poor, famous or anonymous, Mr. Morgenthau said at a news conference from his office on Friday. Mr. Morgenthau detailed an elaborate investigation, which included a series of three meetings between Mr. Lettermans lawyers and Mr. Halderman last month. In the second and third meetings, which were not attended by Mr. Letterman, his lawyers wore a recording device. Mr. Letterman had signed a fake $2 million check to Mr. Halderman on Wednesday, who attempted to cash it on Thursday morning in Connecticut. Mr. Halderman was arrested shortly after that. He said Mr. Halderman had given Mr. Letterman a letter threatening that his world is about to collapse around him and that he would have a ruined reputation once details of his private life were disclosed. The district attorney declined to provide details about the motive Mr. Halderman might have had for the alleged extortion, nor the personal and private information Mr. Halderman claimed to know.