Your grammar is atrocious.
Israel has nuclear weapons because they were given them by the US, UK, and France, to counter the Soviet armed Arab nations, and as part if our nuclear deterint. Israel later built their own (illegally), as well as intermediate range missiles based of American designs.
Iran is too unstable at the moment to be trusted with nuclear weapons. Its theocratic government, and showboating though effective president, have vowed to use their weapons to attack Israel; which would start a global nuclear war.
Actually, neither government should have nuclear weapons; they're not trustworthy, and just might be crazy enough to use them. The best course of action would be global nuclear disarmerment, with only a small arsenal in the possession on the United Nations for use in planetary defense.
Israel is the only nation in the Middle East known to have nuclear weapons.
The actual answer may surprise even you: ID 1667019371. If Iran ever used a nuclear weapon on any country, let alone Israel, Iran would be destroyed.
Iran does not at this time have any nuclear weapons, but could easily build a few in the next couple of years. There is no real secret about building fission type nuclear explosives. The main limiting factor is access to weapons grade uranium and/or plutonium.
They don't want the threat of a nuclear attack, either in a conventional war or by terrorists.
It doesn't look like Iran is trying to defend itself, Mahmoud Ahmadinejad is theatening to use nuclear weapons against Israel.
Answer 1I don't think they care. Iran is not Arab, its Persian. The loss of a few Palestinian Arabs, many of them the wrong sect of Islam anyway, would not matter if lots of Jews could be eliminated...Answer 2Iran does not intend to launch a nuclear missile at Israel if it gains nuclear capability; Iran is more subtle than that. It would likely try to produce a dirty bomb and give it to Hezbollah or Hamas agents to smuggle into Israel and produce a much smaller nuclear explosion in order to threaten the Israeli government at a key moment (such as when commiting to some military objective). In this way, they would not destroy that many Palestinians.
Israel has never made threats against Iran, while the Iranian government has made it very clear the destruction of Israel is their ultimate goal.
Afghanistan has not argued that it wants nuclear weapons.
Because Iran is not trusted to be a sensible member of the UN, abstaining from attacks on other countries. Israel is particularly worried about being attacked from Iran.
There are two questions here. Why does Iran need a nuclear bomb? -- Iran does not NEED a nuclear bomb. Iran WANTS a nuclear bomb since having a nuclear weapon would, in Iran's view, lessen the advantage that Israel has over its neighboring Islamic States. It would also be a symbol of Iranian power and a projection of Iranian influence and civilization. When will Iran have a nuclear bomb? -- The timeline for Iran gaining a nuclear weapon is unclear. It is likely that Iran will have sufficient fissile material to make a bomb by late 2015 or early 2016. However, the Israeli Mossad has performed a number of operations aimed at delaying the creation of such a weapon.
A UN nuclear watchdog report suggests Iran could be developing a nuclear bomb, apparently confirming long-held suspicions in the West. Tehran denies the claims, insisting that its atomic intentions are peaceful. Israel (and the U.S.) may be making preparations to launch a military strike to destroy Iran's nuclear facilities and set the Islamic nation's nuclear pursuits back years. The prospect of a nuclear-armed Iran, led by its rabidly anti-Semitic President Mahmoud Ahmadinejad, who has denied the Holocaust and called for Israel to be "wiped off the map", is intolerable for the Jewish State. Iran's nuclear program constitutes an "existential threat" for Israel that, if not mitigated by international diplomacy, Jerusalem may try to stop with military force similar, but far larger in scope, to the 1981 air strike on Iraq's Osirak nuclear reactor.
Iran's nuclear program is designed to facilitate (if not actually create) nuclear weapons. Additionally, the Iranian government is actively belligerent and continually declares both its enmity towards Israel and willingness to see that country destroyed. That combination makes other countries less interested in having a nuclear Iran.