In piece three, Rowling explained that due to a serious breach of magical secrecy in the 17th century, American wizards live far more separately from **n-magical peoples than European wizards do.
Piece four, meanwhile, reveals that the American magical Congress was also "more intolerant of such magical phe**mena as ghosts, poltergeists and fantastic creatures than its European equivalents, because of the risk such beasts and spirits posed of alerting **-Majs to the existence of magic." Read more...