Satyajit Das, a former banker, is the author of "Traders, Guns & Money," "Extreme Money" and "A Banquet of Consequences: Reloaded."
Opinion
Is it worth being friends with the US?
Be pragmatic: There is no such thing as eternal partners, only perpetual interests
Canada hosted the G7 Leaders' Summit in Kananaskis, Canada, this year. U.S. President Donald Trump left the meeting before the traditional group photo was taken on June 17. © Reuters
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