RTVE, the Spanish National broadcaster, has reported that a march took place following the Barcelona terrorist attack, in which marchers showed their solidarity and defiance against terrorism.
However, as is the standard fare whenever there is a terrorist attack, there is always somebody waiting to blame Israel. Several people were pictured marching with a large banner that said “Israeli Secret Intelligence Service” (ISIS), used to suggest that ISIS is being controlled by the Israeli government.
This is a classic antisemitic conspiracy theory; according to the Definition of Antisemitism, “using the symbols and images associated with classic antisemitism (e.g. claims of Jews killing Jesus or blood libel) to characterise Israel or Israelis” is antisemitic. Furthermore, according to the Definition, “antisemitism frequently charges Jews with conspiring to harm humanity, and it is often used to blame Jews for “why things go wrong””. Such responses are incredibly common whenever there is a terrorist attack, showing that whenever something goes wrong, the Jews will provide antisemites with an easy scapegoat.