Yes; it's all very well to say they are 'mortified' (though I think they are mortified at being caught, not for having done something wrong), but they still must explain why it was done. This spying wasn't just an oversight of procedure or an accident; someone had to take a decision to implement the harvesting of information, someone had to build and install the hardware to do it, and someone had to write the software to make the hardware work. I'd like the top bananas at Google have their feet put to the fire to make them tell the truth they have been dodging all this time.