Lines in the Sand

History is replete with leaders drawing real or metaphorical lines in the sand, challenging opponents to cross only if they dare. David Andelman, an American journalist and author, believes that one way to understand global risks and challenges is to explore the nexus of red lines that define global politics. Indeed, Andelman argues that never before have global affairs been so entangled by red lines. Moreover, he says that Donald Trump made everything worse. Can we recover without a catastrophe?