Israeli tensions 50 years after Poland's anti-Semitic campaign The 50th anniversary of Poland's brutal anti-Semitic campaign of 1968 comes at a time when Warsaw is facing a crisis in its relationship with Israel and Jewish organisations because of a controversial Holocaust bill. At the time, Adam Ringer emigrated to Sweden as a student but returned to Poland in 1994 where he went on to found the booming coffee shop chain Green Caffe Nero. IMAGES AND SOUNDBITES