A diplomatic incident in Latin America has somehow become the focal point for an ever-expanding range of stories - from the Venezuelan elections, to US energy policy to Ecuadorian banana exports to Russia.  Leading even coolheaded observers to ponder the question: are we approaching the Latin American embassy incident singularity?  Meanwhile, there are always good tariffs and bad tariffs - and in announcing his new shipbuilding policies, this week Joe Biden’s giving us both a plate of cheese and a plate of chalk. Finally, Arch-Eurocrat Mario Draghi has made a big speech about European competitiveness. Its 20 years of failure - and its hope for the future.  Is this the first sign of a continent about to flex its soon to be enviable muscles? Or is it the first twitchings of an arthritic bodybuilder about to pop a hernia?