Is the USA going to attack all nations with nuclear weapons and nuclear capablities just because they possess the weapons? Is that the master plan? Do you think we should attack Iran just because it has nuclear weapons? Are you mad?
The more agressive the USA, the larger the number of nations with nuclear weapons will become. They will arm themselves to protect themselves from us.
FYI --
Since 1980, the number of countries possessing the capacity to manufacture and deliver nuclear weapons has grown dramatically, increasing the chances of accidental nuclear exchanges. In addition to the traditional nuclear powers of the United States, Russia, China, the United Kingdom, and France, some newly independent former Soviet republics (Ukraine, Kazakhstan, Uzbekistan, and Georgia) may retain some of the weapons systems from the old Soviet Union. Also, four other countries are now judged by many authorities to possess nuclear weapons capability: Israel, India, Pakistan, and South Africa. While the stockpile of weapons of these countries is small (ranging from a minimum of 5-10 weapons in Pakistan to a maximum of 50-200 weapons in Israel), the proliferation of countries capable of using nuclear warheads in wartime threatens global security. In addition to countries that already possess the capacity to make and deliver nuclear weapons, seven other countries--Argentina, Brazil, Iran, Iraq, Libya, North Korea, and Taiwan--have or recently have had active nuclear weapons programs and may possess nuclear weapons capacity by the year 2000. Finally, there are countries--virtually all of them in the developed economies of the world--that possess the technological capacity to manufacture nuclear weapons and delivery systems but have chosen not to develop nuclear weapons programs. These countries include, among others, Canada, most western and eastern European countries (other than Britain or France), South Korea, Japan, Australia, and New Zealand.
http://www.dushkin.com/connectext/wp/ch10/nuclear.mhtml