Grond writes "The US has banned toner and ink cartridges from passenger aircraft in the wake of last month's bomb plot. 'The printer cartridge ban affects cartridges over 16 ounces.' No word yet on whether that's a weight or volume measurement or whether it's a per-cartridge or per-passenger limit." The ban comes alongside a prohibition on air cargo originating from Yemen and Somalia. Bruce Schneier's blog points out another potential consequence from the recent bomb plot: the end of in-flight Wi-Fi.