That particular story has been covered on the SciFi channel and also on some of the TLC(The Learning Channel) cable channels as well.
Like many others, I do not believe that all UFOs are other-worldly craft with aliens on board. But there are also quite a few reports that cannot simply be written off as cases of mass hysteria or paranoid delusion.
There are quite a few strange items such as ball lightening, strange cloud formations and others, that, if not witnessed before, might be attributed to some other-worldly or supernatural phenomena.
Is it possible(I didn't say probable) that a few reports really are glimpses of other-worldly craft? Well, I'm keeping an open mind.