Iranian President Mahmoud Ahmadinejad, second left, leaves Mehrabad airport enrout to Venezuela to attend Hugo Chavez's funeral ceremony, in Tehran, Iran, Thursday, March 7, 2013. Ahmadinejad has left for Caracas to attend the funeral of his Venezuelan ally Hugo Chavez. Ahmadinejad is the head of an Iranian delegation that flew out of Tehran on Thursday. (AP Photo/Vahid Salemi)

Photo by: Vahid Salemi

Iranian President Mahmoud Ahmadinejad, second left, leaves Mehrabad airport enrout to Venezuela to attend Hugo Chavez's funeral ceremony, in Tehran, Iran, Thursday, March 7, 2013. Ahmadinejad has left for Caracas to attend the funeral of his Venezuelan ally Hugo Chavez. Ahmadinejad is the head of an Iranian delegation that flew out of Tehran on Thursday. (AP Photo/Vahid Salemi)