“What if Trump ‘Decertifies’ Iran Nuclear Deal?” KCBS radio, October 6, 2017.

“Iran Nuclear Deal,” Charlie Brennan Show, KMOX, St. Louis, MO, September 9, 2015.

“Eliminating Bomb-Grade Uranium from Medical Isotope Production,” National Public Radio, December 6, 2010.

“U.S. Approach to Iran,” Newshour, BBC World Service, February 6, 2010 (26:30 – 50:00).

The House, CBC Radio, Toronto, Canada, June 13, 2009 (12:50-15:06).

“Isotopes Future,” As It Happens, CBC Radio, Toronto, Canada, June 12, 2009, Part 2 (00:45-08:50).

The House, CBC Radio, Toronto, Canada, Feb 28, 2009 (42:00-44:19).

“North Korea Nuclear Deal,” Morning News with Jimmy Barrett, 1140 WRVA, Richmond, VA, June 27, 2008.

“Isotopes Pak,” As It Happens, CBC Radio, Toronto, Canada, February 8, 2008.

“Isotopes,” As It Happens, CBC Radio, Toronto, Canada, December 12, 2007 (0:46-9:48).

Interviews on exports of bomb-grade uranium: Joe Scarborough Show, Westwood One radio network, Thursday, August 11, 2005; Norman Mark Show, KNWZ 970-AM radio, Palm Springs, CA, Saturday Aug 13, 2005; Thom Hartmann Show, KPOJ 620-AM radio and nationally syndicated, Aug 16, 2005.