Sidney Jones
Senior Adviser to the Asia Program, International Crisis Group

WHEN police arrested the CIMB-Medan robbers, they found copies of a book called Encouraging the Heroic Mujahidin to Revive the Practice of Secret Assassinations (Ightiyalat)—with a chapter on letter-bombs. Written by a Saudi al-Qaeda member named Faris al-Zahroni alias Abu Jandal, it was translated into Indonesian and began circulating on radical websites probably ar