Beware of the triangles [View all]

What is it with the obsession about triangles on the History Channel? We have the Bermuda, Great Lakes, Alaska and Nevada triangles and
no doubt more in North America. Now we have them in South America, Europe, Asia, Africa, and even Antarctica... Why are there no Circles? Flying saucers have gone out of style now, it seems todays extraterrestrials have gone to triangle shaped vehicles too. Thank you for
your attention to this matter.