The story about Soros and Cohen conspiring to ruin the Euro is nonsense at its best.
Cohen is famous for his stocktrading. And apart from that the Euro started at 1,24 against the USD, now the quote is 1,35.
But in general I think it is common sense to expect a weakening Euro. Greece has always been lying about its financial situation and their membership has to be seen as a political idea - NATO, Cyprus and Communism as the main reasons behind it.
Additionally Europe is by far more concentrating on raising taxes and establishing laws against economic freedom, so it is not really an evil conspiracy against the Euro.