His articles for "Vanity Fair" include features on Bloomberg News and "The New York Times" Iraq bureau, investigations into Judith Miller scandal at "The New York Times" and allegations that Dan Brown borrowed heavily from other books in "The Da Vinci Code", and a profile of Stephen Colbert. Mnookin participated in coverage of the search for Tamerlan and Dzhokhar Tsarnaev, suspects in the Boston Marathon bombing, following the brothers from Cambridge, Massachusetts to Watertown, Massachusetts. On July 21, 2014, he published a story in "The New Yorker" story about a family whose child was the first ever case of a rare genetic disease. He also has reviewed books about science and society for "The New York Times Book Review".