Though you don't see Iran going around killing the people responsible for Israel's nuclear arsenal.
* Wikipedia comes up with the odd missile-strike against the islamic state.
Edit: There's a difference between financing terrorism/freedom fighters, which about every country in the region (and basically everybody else) does, and preparing a pre-emptive nuclear strike.
[0] https://en.wikipedia.org/wiki/Abqaiq%E2%80%93Khurais_attack