UFOs may be fodder for comedians and science fiction but there was no joking Monday when a group of pilots and officials demanded the US government reopen an investigation into unidentified flying objects. The 19 former pilots and government officials, who say they have seen UFOs themselves or been involved in probes of strange flying objects, told reporters their questions can no longer be dismissed more than 30 years after the US case was closed."We want the US government to stop perpetuating the myth that all UFOs can be explained away in down-to-earth, conventional terms," said Fife Symington, former governor...