The big liberal argument against missile defense has always been that missile defense doesn’t work. Even with all the successful tests of our missile defense system, the critics have always said that the tests were not realistic. That was an easy argument to make; you can never have a fully realistic test unless someone is launching hostile missiles at you.
And that’s exactly what happened in Israel last month. Hamas launched countless missiles against Israel, and Israel’s new Iron Dome system shot nearly all of them down.