For All The Hype, Does Israel's Iron Dome Even Work?

This has been discussed a few times. I think the short answer is that we don't have enough information to verify Postol's theory.

But I think there's one major problem with his analysis. Iron Dome works by tracking rockets and intercepting those that are heading towards a populated area.

It ignores rockets that are heading towards areas where casualties are unlikely.

So his argument - that the system is useless because warheads aren't being destroyed - is flawed. If the tracking system works then knocking rockets off course is a success. The warheads don't matter as much if they are redirected towards unpopulated areas.