Security ... think about it!
The LCROSS mission is designed to slam the expended upper stage of a Cenatur rocket into the south pole of the moon in the hopes that in the debris field from the resulting crater, we’ll see signs of water. A sheparding craft will drift behind the spent rocket and analyze the dust up. The shepard will also carry a camera, so it will be able to record the impact of the rocket, as well its own demise as it too crashes into the moon.