NEW : Iran 's status should be determined by elections , Iran leader says . NEW : No homosexuals in Israel , Ahmadinejad says . Blaming his schedule , Ahmadinejad left Columbia after his speech before answering many questions posed to him , Bollinger said . Columbia president : Ahmadinejad lacks courage to answer questions . Mahmoud Ahmadinejad says `` insults , '' false claims in Columbia introduction .
NEW : Iran 's status should be determined by elections , Iran leader says . NEW : No homosexuals in Israel , Ahmadinejad says . Columbia president : Ahmadinejad lacks courage to answer questions . Mahmoud Ahmadinejad says `` insults , '' false claims in Columbia introduction .