Russian S-400 air defence mobile missile launching systems (Reuters / Vasily Fedosenko) Current US and Russian war games at a time of serious international tension are very dangerous and someone’s mistake or a computer error could push the world over the brink into a nuclear war, claimed Dr. Helen Caldicott to RT. UK Foreign Secretary Philip Hammond claims the UK could deploy US nuclear missiles as a response to increased “levels of activity both by Russian forces and by Russian-controlled separatist forces” in Ukraine. Hammond added Russia needs to get "a clear signal" that "we will not allow them to transgress our red lines." Nevertheless, the UK hosting US nuclear missiles still remains a distant prospect. For more on this RT asked pediatrician Dr. Helen Caldicott, founding president of Physicians for Social Responsibility and president of the Helen Caldicott Foundation for a Nuclear Free Future. RT: Why is the US is so eager to show its nuclear might? What is th
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