After Manchester, progressives should know this: Jewish people feel very alone. We need you to stand with us | Dave Rich

There’ll be sympathy and heightened security, but in the 1960s when Jewish communities faced attack, there was also solidarity. We need that backYom Kippur is the holiest day in the Jewish year, a day of repentance, prayer, fasting; and now – for two Jewish families in Manchester – also a day of mourning. It is also, increasingly, a day when terrorists visit their local synagogue to murder the Jews inside.Six years ago, that terrorist was Stephan Balliet, a German neo-Nazi, and