Like Iraq in the 1990s and early 2000s, Iran is trying to look like they HAVE nuclear weapons.... When in reality, they don’t.
Israel’s practice bombing of their Nuclear facilities last week put them on the defense, and they are trying their best to look like they have the ability to strike back. They have no ability whatsoever to do so.
Look at:
http://www.globalsecurity.org/wmd/world/israel/jericho-2.htm
Iran may have the capability to hit Israel but it would be pure suicide for them to do so.
A single nuke wouldn’t eliminate Israel and it would kill a lot of muslims in the process. I believe the prevailing winds in the area would spread fallout across a lot of muslim land. Israel might be staggered by the blow but they would do some serious damage to Iran before they’re done.