The MexicanAir Force releases a video of eleven UFOs filmed over the State Of Campeche . The lights were filmed on March 5 by pilots using Infrared equipment. UNAM scientists say the phenomenon was probably caused by pockets of atmospheric gas. (CNN) [http://story.news.yahoo.com/news?tmpl=story&cid=589&e=1&u=/ap/20040514/ap_on_re_la_am_ca/mexico_ufos (AP)]