you may not agree with EP's model but metreorite impact and volcanism together probably have more going for it still than the NASA line on salt lakes and possible life. At least Squyres admitted these were acid salt lakes in the questioning at the latest press release. But didn't the USGS sedimentologist have trouble keeping to the party line that the structures were caused by flowing water rather than aerial deposition. Poor Karl Popper will be spinning in his grave at this prostituion of the scientific method. Check on the web for what he said about the testing of hypotheses and then look at what NASA is doing. And for those with an open mind, consider what the Odyssey gamma / neutron data suggests about distribution of near-surface hydroxylated sulphates across Mars rather than ice at > 1m depth in the current interpretation.