wiredmikey writes with this snippet from an AP report: "Neighbors gasped when authorities showed them photos of the inside of the Southern California ranch-style home: Crates of grenades, mason jars of white, explosive powder and jugs of volatile chemicals that are normally the domain of suicide bombers. ... Now authorities face the risky task of getting rid of the explosives. The property is so dangerous and volatile that they have no choice but to burn the home to the ground this week in a highly controlled operation involving dozens of firefighters, scientists and hazardous material and pollution experts. ... Some 40 experts on bombs and hazardous material from across the country and at least eight national laboratories are working on the preparations. They have analyzed wind patterns to ensure the smoke will not float over homes beyond the scores that will be evacuated. They have studied how fast the chemicals can become neutralized under heat expected to reach 1800 degrees and estimate that could happen within 30 minutes, which means most of the toxins will not even escape the burning home."