It wasn’t so long ago that panic rooms were thought of as little more than a plot line for a Jodi Foster film or an expensive eccentricity of the paranoid. No more. Nowadays, increasing numbers of homeowners are spending big bucks to have panic rooms, safe cores and other sorts of high-tech security systems installed in their home to ensure their family and possessions are kept safe from intrepid intruders and other calamitous events. One residence, located high in the hills above Los Angeles, goes several steps further than a simple but effective panic room. The lavish and luxurious appointments of the sky-high mansion discreetly hide and disguise a security system so tight that it just may be the safest house in the world.