By Ben Aris in Berlin Leaders of the Global South will flock to Kazan, the capital of Tatarstan, on October 22 for this year’s BRICS summit hosted by Russia, where they hope to thrash out some more details of the new non-aligned global order that its de facto leaders, President Vladimir Putin and China’s President Xi Jinping, are hoping to establish in order to challenge what they call the “unipolar” order, the US hegemony. Originally a marketing term to sell stocks, coined by the legendry Goldman Sachs analyst Jim O’Neill, the grouping has since developed into a political alliance of the worl…