Turkey has just called Donald Trump’s bluff by going ahead with the purchase of Russian S-400 anti-aircraft missiles. The outrage in Washington is volcanic. Trump is vowing to rain fire and brimstone sanctions down on the disobedient Turks…….. Even more important, the S-400 system costs about half the price of its leading competitor, the US Patriot PAC-2 system. The S-400 may also be more reliable and accurate. The Great White Father in Washington is not happy.