As US diplomatic compounds remain on high alert globally, Libyan officials have arrested four in connection with the death of US Ambassador Chris Stevens. A new study in the British medical journal The Lancet finds jobs with stress are 23% more likely to produce a heart attack than a non-stressful job. Friends, family, and former astronauts gathered at the national memorial service for astronaut Neil Armstrong, who died last month at the age of 82. For the first time, Facebook has beaten Google in online ad revenue with its new Adroll browser ad system released in July. France has convicted the first violator under its controversial three-strikes anti-piracy law, being forced to pay a 150 euro fine for an unsecured Wi-Fi connection.