From Reuters:
JERUSALEM (Reuters) - Ballistic missiles could be Israel's weapon of choice against Iranian nuclear facilities if it decides on a pre-emptive attack and deems air strikes too risky, according to a report by a Washington think-tank.
Israel is widely assumed to have Jericho missiles capable of hitting Iran with an accuracy of a few dozen meters (yards) from target. Such a capability would be free of warplanes' main drawbacks -- limits on fuel and ordnance, and perils to pilots.
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My Comment: Raising the stakes and pressures on the other powers to do something with Iran's nuclear program.