The real purpose of the MSL laser

The Mars Science Lander has a big ole laser on it and NASA says its for science. In real life, there was a secret mission to Mars that's gone rogue. The Cimmeria Advanced Traveler landed in the Terra Cimmeria area seven years ago to explore crater formations. The probe began ignoring commands, responding occasionally, if at all. Scientists have lost all contact and fear the missing probe may biologically contaminate the sandy Martian soil. Extreme measures must be taken. The purpose of the laser is obvious: Curiosity must hunt down and kill the CAT.