A Danish news TV programme recently used a screenshot from a computer game as a Syrian backdrop for their report on the conflict. The rather embarrassing mistake forced the TV2 broadcaster to issue an apology afterwards.
Unfortunately this time death of the Apple CEO Steve Jobs is officially confirmed. We can all be sure news about his death are no mistake this time. Reading the first news that appeared last night probably (I hope at least) everyone started seeking confirmation by more independent official sources before believing and spreading the word.