Gates sparks security alert
A party at Microsoft Chairman Bill Gates' waterfront mansion recently became the focus of unusual police attention.
The US Department of Homeland Security announced a "temporary security zone" earlier this month around Gates' Lake Washington home, saying in a notice published in the Federal Register that the move was necessary to prevent "terrorism, sabotage or other subversive acts."
Security zones prevent any person or watercraft from entering the area without explicit government permission. They're normally used to tighten security around military bases and naval facilities, and it's exceedingly rare for them to be erected around a private residence.
