i want to thank my colleagues for making the unprecedented gathering a day of unprecedented progress confronting one of the greatest threats to our global security. our work today not only advances the security of the united states, it advances the security of all mankind. >> bret: president obama wrapping up his 47-nation nuclear summit to address the issue of loose nuclear material. saying he got the nation to sign on to a plan over the next four years and there are critics about what came out of the summit today, including republican jon kyl from arizona who said this --