Iron Dome launcher fires inceptor rocket
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Does Israel's Iron Dome actually work?

22 April 2013 Last updated at 06:03 BST

The new US Secretary of Defence Chuck Hagel is starting a tour of the Middle East.

He begins in Israel where the United States has just announced that is its planning to bring its investment in the Iron Dome anti-missile defence system to several hundred million dollars in the coming years.

Kevin Connolly has been taking a closer look at Iron Dome.