Ufological Shades of Gray: Poles, Power Plants and Political Protests

Ufological Shades of Gray: Poles, Power Plants and Political Protests | Mysterious Universe: "Has Earth been visited by intelligent life from outer space? If so, what is their purpose for coming here… are they studying life on our planet, or are they merely trying to utilize resources that may exist here? Or, thinking about it logically, would any civilization advanced enough to be able to reach Earth even need the kinds of resources our planet can offer?"