The Leonard Lopate Show Edit this Published in The Leonard Lopate Show Radical Islam Listen 24 min Queue 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/56822/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Journalist and news producer Brigitte Gabriel talks about the historical and religious roots of radical Islam, and why she believes it’s a deadly threat. Her new book is They Must Be Stopped.