An Afghan girl injured by a stray grenade returns home --- A young girl, badly wounded by a stray grenade in Afghanistan, has finally returned home after treatment in the United States. -- Seven-year-old Shah Bibi took the full force of the blast in an area where villages are frequently caught in the crossfire between the Taliban and Afghan Army. -- It is the same region where just last week two western female journalist were shot - one of them fatally. -- The BBC's Karen Allen has been following Shah Bibi's progress. - Moire, at: http://www.bbc.com/news/world-asia-26991036