This president has shown too well how dangerous an act first, think second strategy can be. Modern technology is not failsafe, and the weapons available are terrifying. People make mistakes in judgement as has often been shown by history. Potential planetary annihilation is something that needs some attenuation and forethought. Absolutely Congress should be involved in the decision. They represent the people of the United States who should at least have some say over their own potential demise.