It works; game officially changed.
"Residents in Ashkelon reported Thursday seeing Israel's new Iron Dome defense system intercept a Grad rocket fired towards the southern city from the Gaza Strip. IDF officials called the interception a "historical moment", saying it was the first of its kind in the world.
Two intercepting missiles were fired at the rocket, but the first succeeded in hitting it, an army official said.
Eyewitnesses told Ynet they saw the rocket explode in midair and realized that the system had intercepted its first rocket."