US denies involvement in Cairo hit-and-run

US denies involvement in Cairo hit-and-run: "CAIRO — The US embassy in Cairo on Tuesday denied its staff were behind the wheel of what appeared to be an official vehicle that mowed down dozens of protesters in a high-speed hit-and-run captured on video. 'We have seen a video that alleges a US diplomatic vehicle was involved in a hit-and-run incident that [...]"