Danger of Tehran's missile program remains in question

As Iran threatens to attack Israel over the assassination of a Hamas leader in the Iranian capital, its longvaunted missile program offers one of the few ways for Tehran to strike back directly, but questions loom over just how much of a danger it poses.

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The program was behind Iran's unprecedented droneand-missile assault on Israel in April, when Iran became the first nation to launch such a barrage since Iraqi dictator Saddam Hussein lobbed Scud missiles at Israel in the 1991 Gulf War.

But few of the Iranian projectiles reached their targets. Many were shot down by a US-led coalition, while others apparently failed at launch or crashed while in flight.