with all due respect to all opinions on this thread I think the main misconception here is trying to answer the question who is right, which can not be answered because none of the above mentioned countries are, or will ever be, in the right.
The US mainly wants economical power, it is willing to go to war for it. The Iranians want power and influence, they want it first on their fellow Arabs who are Muslim, meaning regional power. The regime in Iran is not a democracy, gays are being hanged in Iran all the time, young girls suspected of adultery are in prison waiting for the right moment to be executed, criticism is not something these people take lightly. Israel wants to survive and keep growing its financial system (which is not very strong).
As much as I think it is good to disbelieve the TV and news in this case not believing something does not mean that it is the exact opposite. For example if the TV says that Iran wants the destruction of Israel and you do not believe it, simply don't believe it, but do yourself a favor and do not think that it means that the Iranians love Israel and want to hug all Israelis.
The statements about the destruction of Israel are numerous, are not a question of a faulty translation and misinterpretation, made by many people and not just the president of Iran. They want to kill all Israelis (something they have an moment that confuse the Israelis with Jews), they are free to hold that opinion just as Israel is free to defend itself.
The attitude towards Israel is clear, it can be seen by the terror organized war like actions of the Hizbolla in Lebanon, 100% sponsored by Iran (which does not deny it at all). While for years this terrorist organization was named a "resistance" group its purpose and master became clear when they started massacring Syrians in the latest uprising, they are Iran's soldiers who will do as instructed, and they slaughter Muslim Soni with no second thoughts - and they will do the same to gays, Christians, Jews, non-believers, Shi'a who oppose Iran and anyone they will be instructed to kill.
As much as this seems far away, and to not concern many of us here, this is one problem that keeps growing, and will eventually have consequences. To add to this, there are many Iranians who are desperate for freedom, for real democracy, and who are hold hostage by this fundamental government, the US had not helped them at all when they went out to the streets and got butchered and they remember that well.