Detailed text transcripts for TV channel - CNN - 20100807:22:53:00
>> harvard and ucla professor has a ph.d. in nuclear engineering and consults regularly with the u.s. government on issues of national security. he has seen walker's film. >> it certainly is true that terrorist organizations have been trying to get nuclear weapons. >> he agrees that terrorists are harder to deter but says they still have to get the weapons from somewhere and having some nuclear weapons to deter those nations from dealing with terrorists does serve a purpose. >> it's not that the countries that have them are stupid. it's just that it is wiser not to use them. than it is to use ...