The Mars Descent Imager (MARDI), the Laser-Induced Remote Sensing for Chemistry and Micro-Imaging (ChemCam) are now restored to the project. In the case of ChemCam, LANL, the French Space Agency (CNES), and even other MSL instrument team members have developed a series of descopes and support arrangements to allow instrument completion, reducing the development cost-to-go by a little over 80%--i.e., from $2.5M to about $400K. As a result, ChemCam will be funded another $400K by the Mars Exploration Program, allowing them to complete development. That's cool, a cost reduction...but who was left holding the bag at $2.1M-Santa?
I don't really understand why this is a problem--this single instrument was one of the more importnat ones for the mission--I'm not really sure what the technical difficulty was--other than it's just plain hard making hardware that won't immediately fail from the rigours of interplanetary travel...