By Benedict Tetzlaff-Deas A newsreader has spoken of the ‘chaotic’ moment he had a gun held to his head during an on-air attack by armed thugs. Jose Luis Calderon, a journalist in Ecuador, said the masked gunmen also put an explosive in his jacket pocket after barging entry into TC Television’s studios in Guayaquil. Footage showed him trying to reason with the masked gunmen as they moved a gun towards his head. The presenter said he remained “calm” throughout the ordeal, and fortunately escaped with his life when police brought the terrifying hijacking to a close. It came as the South American…