Gunman kill the prosecutor hired to investigate the murder of Pakistan's former prime minister Benazir Bhutto, the death toll from the Bangladesh building collapse tops 500, Indian parents are selling their children, and North Korea tastes how sweet democracy can be.

Bangladeshi workers vent their anger at last week's building collapse, the world seeks evidence that Syria has crossed its red line, Venezuelan lawmakers use their fists, and Psy is a real-life cartoon hero.

People are feared trapped after a suspected gas explosion in the Czech capital, Syria's prime minister survives a car bombing, South Koreans leave the Kaesong industrial zone for what could be the last time, and cheetahs are not, repeat not, a national security threat.

Bangladeshi garment workers protest after one of the worst factory disasters in history, Spain's unemployment hits a record high, US intelligence agencies face questions over what they did - and didn't - know about the Boston bombing suspects, and the Mars rover reveals its penchant for toilet humor.