Just what exactly cannot be blamed on the Zionists?

Just in case you missed who was responsible for the bombing attack on a Shia Mosque the President of Iran spells out who the perpetrators were in this report from the Jerusalem Post:

President Mahmoud Ahmadinejad blamed the United States and Israel on Thursday for the blowing up of a Shi'ite shrine's golden dome in Iraq, saying it was the work of "defeated Zionists and occupiers."

Speaking to a crowd of thousands on tour of southwestern Iran, the president referred to the destruction of the Askariya mosque dome in Samarra on Wednesday, which the Iraqi government has blamed on insurgents. "They invade the shrine and bomb there because they oppose God and justice," Ahmadinejad said, referring to the US-led multinational force in Iraq.

The interesting thing about the Iranian president is how he manages to blame absolutely everything on Zionists and/or the “occupiers” but what I want to know is how far is Ahmadinejad willing to go to keep this up? Are there any appreciable limits on what can be blamed on the Jews?