Concept of "red lines"

Since the beginning of the XXI century in a political discourse such concept, as "red lines" (redlines) even more often began to be used. This term it was possible to hear in speeches President of the United States Barack Obama, the prime minister of Israel Benjamin Netanyahu, President of the Russian Federation Vladimir Putin, the Minister of Foreign Affairs Iran Khosseyn Amir Abdollakhian and many others. Despite the increasing frequency of application of this term in international policy, in the Russian research environment to this question do not pay due attention though its influence on a modern environment in the world is very great...