Alot of weird footage was caught by the STS-115 mission on Sepetmber 2006 , here are a few videos:

Discovery science channel looks at the connection between ufos and balls of light

I usually steer clear of these fringe videos, however the history channel is always an eye opener, these two are interesting:
Ufos then and now

Ufos and cattle

The director of The Disclosure Project reports that a new Army Intelligence witness has come forward with knowledge of an extraterrestrial biological life form who survived the UFO crash at Roswell, NM.
This witness saw a living ET three years after the famous crash in New Mexico in 1947. In 1950, this witness, who was at a military facility on the east coast, saw a four to five foot tall ET being who was being held in a cage in a guarded bunker. Apparently the ET was being transported to a facility for study. This witness, who is highly credible, states that he learned that this ET was the sole remaining living being from the Roswell crash in July of 1947. The ET had a larger than human head, and was yellow-gray in color. The ET was in a small cage and under armed guard.
This witness states that another ET survived the crash but had since died in captivity. A separate military witness, whose father was a senior official in the US Government, has told The Disclosure Project, that his father made a death-bed confession of seeing an ET being at a facility near where this new Army Intelligence witness had seen the ET.

This is one sure reason why the US government is worried about disclosing ufos - they post a security threat because they can render nuclear weapons usesless. This is not an uncommon event and one would have to wonder why ufos are so interested in deactivating nukes all over the world? In this video Capt. Robert Salas the Launch Commander at the site of the largest Nuclear Missile field in the world in Malstrom A.F.B., Montana, USA. He could not lack credibility as he is the man at the missile launch hot button.
Video courtesy of the Disclosure Project

Rep. Dennis Kucinch of Ohio was asked this during a debate of the Democratic candidates for president tonight: Has he ever seen a UFO?

"The godmother of your daughter, Shirley MacLaine, writes in her new book that you've sighted a UFO over her home in Washington state,'' the questioner asked, "that you found the encounter extremely moving, that it was a triangular craft silent and hovering, that you felt a connection to your heart and heard direction in your mind.

"Now,'' Kucininch was asked, "did you see a UFO?'''

"I did,'' Kucinich said.

"And the rest of the account -- I didn't -- I -- it was unidentified flying object, okay. It's like -- it's unidentified. I saw something.

"Now, to answer your question,'' Kucinich said, "'m moving my -- and I'm also going to move my campaign office to Roswell, New Mexico and another one, an extra, to New Hampshire, okay... And also, you have to keep in mind that more -- that Jimmy Carter saw a UFO, and also that more people in this country have seen UFOs than, I think, approve of George Bush's presidency.''

Questioner Tim Russert replied: "14 percent of Americans say they
have seen UFOs.''

In the post-debate interviews, Gov. Bill Richardson of New Mexico said he is happy to promote tourism in Roswell, but he has never seen a UFO.
source

Unsolved Mysteries was an Excellent TV show from the mid nintes, hosted by the late Robert Stack. They had some great videos on ufos, here are a few (quite long)
Bentwaters
(have posted before but this is long version)

Roswell:


government men and ufos

News footage of the object seen over south dakota. You can clearly see the object leaving two vapor trails behind in the sky as it drifts toward the southern horizon. May be space debrie but unsure