The Leonard Lopate Show Published by The Leonard Lopate Show Informants and the FBI Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/126786/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend New Yorker contributor Evan Ratliff tells about the role of confidential informants in the FBI. His article “The Mark” is in the May 2 issue of the New Yorker.