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 .
NEW : Israel 's status should be determined by elections , Iran leader says . NEW : No homosexuals in Iran , Mahmoud Ahmadinejad says . Columbia University president : Ahmadinejad lacks courage to answer questions . Ahmadinejad says `` insults , '' false claims in Columbia introduction .