Should we hide from ET ?

..." The standard wisdom in interstellar diplomacy is to avoid controversy – a sometimes elusive goal. In the early 1970s, NASA attached plaques to two Pioneer spacecraft etched with basic mathematics, science and line drawings of a man and woman (see image at right). Some complained the space agency was sending "smut into space", with the naked figures revealing more than they deemed proper for a first encounter.

Other messages have escaped such criticism. One from the Arecibo Observatory in Puerto Rico depicts the human form in so few pixels that its sex is not clear. The Voyager recordings excluded war, poverty and disease"...

Well give an idea... see also: http://messages.seti.org/

Do you think we should put something like this??

or