It seems that the Rio de Janeiro concert, part of the ample [tag]Live Earth[/tag] Festival set rock the world at 07.07.2007, is in serious jeopardy of not taking place, for security reasons. Brazilian officials claim they do not have enough police staff to ensure safety for the swarms of people expected to take part at the hugh concert at the Copacabana Beach and that they have to cancel the event. Live Earth officials, however, are…