Isomerism is the phenomenon whereby certain compounds, with the same molecular formula, exist in different forms owing to their different organisations of atoms. The concept of isomerism illustrates the fundamental importance of molecular structure and shape in organic chemistry.
By signing the nuclear deal, Iran has given up that nuclear umbrella for as long as two decades and made the case for the United States to further strengthen the conventional military capacities of Israel and the GCC.
The American people were told that this was a long-term deal. Simple fact of the matter is that most of the deal is in place for only 10 years and allows Iran to purchase intercontinental ballistic missiles (ICBM) in 8 years. The only reason to have ICBM's is to put a nuclear warhead on it.