ABSTRACT
The nuclear threat to the United States has been there from the time other powers, especially Russia, acquired nuclear technology. Now the sources of nuclear threats to the United States include terrorist nuclear, cyber nuclear, belligerent countries’ nuclear, and nuclear explosions within the United States. Terrorist threat in the United States is a present reality. The warning systems that are both ground and space-based are used to constantly watch for and analyze possible enemy missile launches, plus data on actual threats that ought to be communicated to decision-takers, also involves cyberspace operation. Realizing the enormity of the nuclear threat, successive US Presidents and Congress have realized the need to negotiate with countries harboring nuclear weapons. One of the most important early treaties that resulted from such talks was the Strategic Arms Limitations Talks with the USSR in Helsinki, Finland in 1969.
