The Brian Lehrer Show Published by The Brian Lehrer Show Following Up: "Cop-Killer Bullets" 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/30706/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Earlier this week during an interview with Senator Gillibrand, the subject of "cop-killer bullets" came up. Paul Browne, deputy commissioner for Public Information at the NYPD, explains what they are and if there's an effort to ban them.