Professor Ana Luisa Cid, a well respected Mexican ufologist, whom I know and have interviewed, is reporting the sighting of a UFO over Xochimilco on January 18.

Aviation technician Alfonso Salazar reported the incident in which an Airbus-A320 flew close to a UFO as the plane ascended to a cruising altitude. The unknown object was
spherical-shaped, and metallic in appearance. The plane and UFO came as close as 200 meters.

Here is question that I often ponder: How many of these incidents occur that are never reported? What do you think?