lucas tomlinson has the story. reporter: jon, this ufo report is likely to leave many people unsatisfied. the evidence is largely inconclusive. the u.s. government says it has little explanation for 143 sights since 2:00. in a classified report from the director of national intelligence warns these an identified objects clearly pose a safety of flight issue and may pose a challenge to u.s. national security. these observations could be the result of sensor areas spoofing or misperception and require digital analysis. this recently unclassified the video from a navy jet off the coast of florida reignited the public's interest in ufo snooze my gosh. they're going against the wind. the wind is 120 knots to the west. >> it rotated. >> oh, my gosh, dude. >> look at that! reporter: texas congressman brian babin weighed in. >> i'm of the opinion simply as