What caused the latest drama at the BBC, and what does it say about the state of British media? Ian Dunt explains. As Brazil tries to present its best side to the world during COP30, unrest is stirring in Rio de Janeiro. Rio's governor is undertaking a violent crackdown on gangs in the city's favelas, with a death toll in the hundreds. Then, on a happier note, Australia owns the oldest surviving computer in the world, CSIRAC, and the University of Melbourne is celebrating 70 year since computing classes were first taught on the machine.