Three ORB Structures Invade American Skies (4 Videos)

These are almost becoming frighteningly frequent in America - none of these sightings, I believed, even generated a TV report. All this amid some reports of a HUGE increase in UFO sightings this month worldwide. IMO, all of these videos are noteworthy and don't seem part of a hoax.
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The first video up is from Lowell, Massachusetts and happened in the skies there on 3-11-11: (6,200 views) This one ultimately has more than three Orbs at times, turns into a square even,  and is the least `structured' IMO of the videos below:


Video Two - Southern California (language warning) - 3-15 uploaded - 12,400 views - `A Triangle that moves and changes shape. You get to see one Orb light up as it goes from two orbs to a three point object. (Original source)


Video Three - Las Vegas - 21,000 views - similar to the Phoenix Lights of 1997 - 3-16-11 ---- 11:48PM (Original Source)


Or this 3-19 `Triangle, 4 at times, over Florida' - http://www.youtube.com/watch?v=iPr9jF2ilds

Video Four - Denver Colorado area - 3-20-11 -- 39,000 views --- BEST VIDEO in terms of being like the Phoenix Lights of 1997 -- Indeed read the description below the video:


Description with video:
Closer view of the UFOs above Denver, Colorado. They moved very slowly in a triangular formation across the sky then disappeared one at a time. We were in Lafayette, CO in my cousin's backyard facing west. The lights appeared to be approximately 3000-6000 feet high, coming from the West-Southwest and moving to the southeast. When they disappeared, they seemed to be directly over Denver. I was only visiting on my vacation, so I am not positive about the exact location or direction we were facing, but I am sure we were looking towards the west. We viewed the lights for approximately 15-20 minutes before they disappeared.
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Seems hard to believe that this last video didnt' make the news, don't you think?
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