Mysterious white UFO over Silicon Valley has got the internet puzzled – what is it?

http://www.disclose.tv/action/viewvideo/228002/mysterious_white_ufo_over_silicon_valley_has_got_the_internet_puzzled__what_is_it/

The four-second clip, filmed from 80 metres above Silicon Valley, California, last year, shows a small white object shoot across the sky past the hovering drone …