Think before you tweet
CNN sacked senior Middle East editor Octavia Nasr following a controversial message she posted on social networking site Twitter, making her the latest public figure to come under fire over 140 characters or less. We reflect over other tweets that have sent the web in a flurry of controversy.
Picture editor's choice
A look at Bollywood’s best and brightest stars in action this week
In pictures: Three men have injured hands replaced with bionic ones controlled using nerves and muscles transplanted from legs
The snowy foothills of the High Atlas mountains in Morocco are home to several Berber villages
The deep freeze transforms Niagara Falls into an icy spectacle, encasing the trees around it into crystal shells