Why Is There Such A Martian Cover-Up?

I find their recent work on the Cydonia ruins on Mars to be very intriguing, with their description of an advanced, human civilization in the remote past, including underground tunnels, high-speed shuttle trains and large, architectural constructions, all of which was destroyed by planetary cataclysm a very long time ago. Indeed, there are photos that have come back from Mars that clearly depict very large, heavily eroded, ancient ruins.

Look at the obvious, rectangular, heavily eroded structure in the top of the photo here, that is canted to the side. NASA has a great deal of photographic evidence of ancient, eroded structures on Mars. This is one small part of that evidence .... http://eventhorizonchronicle.blogspot.co.uk