There has been growing concern that terrorists might use radiological sources to create a Radiological Dispersal Device (RDD). Calculations have shown that an attack would be unlikely to produce radioactive contamination sufficient to kill or even injure anyone, but there would be psychological and economic effects.
Jun 3, 2016 The Cipher Brief
In considering foreign application to acquire U.S. companies, the United States needs to consider both risks as well as benefits in both defense and economic dimensions, write Charles Wolf, Jr., Brian Chow, Gregory Jones, and Scott Harold.
May 15, 2012 RAND.org and GlobalSecurity.org