Economist loves traffic circles

For some reason the Economist loves traffic circles ( aka rotaries or roundabouts) ) enough to run TWO articles reminiscing fondly about them in the same issue.  The Economist thinks the British invented them and seems proud of the fact.  You gotta wonder why.
  Actually, a traffic circle is what you build when you cannot afford a proper clover leaf intersection.  Some people think a traffic circle is better than a plain grade crossing of two roads.  Other people think they are death traps. 
   The Economist has some strange numbers in their articles.  They claim that traffic circles were introduced into the United States by Nevada in 1990.  That ain't right.  Memorial Drive in Cambridge MA has a pair of vicious traffic circles on Mem Drive that have been bending fenders since the 1950's to my certain knowledge. In fact their have probably been there since the 1930's, but that's before my time.  And there was another lethal traffic circle on US route 1 in Saugus, now happily gone, that bent it's share of fenders in the 50's and 60's. 
   Must be a slow news week at the Economist.