The Iron Dome, David’s Sling, and Arrow 2/3 systems certainly represent the most advanced air defense technologies in existence.

As tensions continue to rise between Israel and Iran, both are preparing for the worst. The former, has the Iron Dome, but it doesn't intercept every missile.

An Iranian ballistic missile slammed into a building complex in Beer Sheva in Southern Israel with Israeli media reporting that air defense systems malfunctioned. It comes as a senior intelligence official in Israel tells NBC News that Israel’s renowned Iron Dome missile defense system had been 90 percent effective,