"When the Navy Seals killed Osama Bin Laden, they captured a treasure trove of material that provided some unprecedented insight into Al-Qaeda's plans. One of those was a detailed campaign for starting fires throughout the West. U.S. officials have pretty much determined that some of the fires that burned in California last year [2011] were ignited by Al-Qaeda operatives."
Muslims do like to burn things:
"When the Navy Seals killed Osama Bin Laden, they captured a treasure trove of material that provided some unprecedented insight into Al-Qaeda's plans. One of those was a detailed campaign for starting fires throughout the West. U.S. officials have pretty much determined that some of the fires that burned in California last year [2011] were ignited by Al-Qaeda operatives."
Source.