Wanted Megaupload founder Kim Dotcom has launched a new file-sharing website, promising users beefed-up privacy levels in a defiant move against US prosecutors who accuse him of facilitating massive online piracy.

After 15 years of wearing a mask and living as a recluse, a US man who lost his lips, nose and teeth in a gun accident has received the most extensive face transplant to date, according to doctors at the University of Maryland Medical Center.