To avoid being kidnapped for ransom , what type of security detail do Bill Gates , Mark Zuckerberg , Warren Buffett , Sergey Brin , and Larry Page move around with ?
Why is Bill Gates ' net worth around 79.3 billion -LRB- according to Google search -RRB- but Mark Zuckerberg , Larry Page , Sergey Brin , etc. are around 29-34 billion USD ?