Curiosty finds something on mars, NASA wont say what it is

Anyone else read about this?

[COLOR=#333333][FONT=Georgia]“Grotzinger says they recently put a soil sample in SAM, and the analysis shows something earthshaking. “This data is gonna be one for the history books. It’s looking really good,” he says.”
[/FONT][/COLOR]/[COLOR=#333333][FONT=Georgia]John Grotzinger, the principal investigator for the rover mission
[/FONT][/COLOR]
http://m.npr.org/news/front/165513016