"The Cosmic Hoax: An Exposé" by Steven Greer

On the theme of ETs as "traders", I wonder whether - if true - you guys would see this as tending to imply that (those) ETs are based in our physical reality, rather than being from some sort of extra-physical reality. I suggest his because the trading, presumably, would be in physical objects, which would not have much if any meaning for an ET whose origin was extra-physical. Potentially, such ETs could anyway even manifest whatever physical objects they cared to given that they are already able to manifest themselves in this physical reality.

Oh, and Mike, I think the "ETs" on Mars to which Typoz referred were us humans, who are currently exploring - by proxy - that planet, and who in that scenario are "alien" to Mars - but hopefully Typoz will correct me if I'm wrong.

Regarding Mars, when I said drilling holes, firing lasers etc that was a direct reference to the robotic vehicles despatched there from Earth. Because of the time taken for signals to travel between Earth and Mars, the robots are largely independent, autonomous, not controlled by any human. And being machines they have no comprehension of emotion. At a stretch of the imagination, some hypothetical life-form on Mars could find itself being drilled or zapped without a care from the machine. Though that part is I think at flight of fancy. The intent of my post though was serious, to wonder about robotic visitors to Earth.