Subject: What are these uexplained lights?

The A&E TV channel featured an episode by Chicago reporter Bill Kurtis 
recently in which he traveled to Mexico to investigate unidentified lights 
in the sky seen for years by millions of people on a daily basis. He and 
his camera crew filmed them in daylight, and they appear to be small 
points of light floating in the air. No scale or height estimate was 
possible. He was mystified. What ARE these things? And while we are at it, 
what are the Marfa lights, viewed in Marfa, Texas over many years, filmed 
and investigated to no avail by an 'Unsolved Mysteries' crew?

Re: What are these uexplained lights?