In the wake of Hassan Nasrallah's killing, Hezbollah faces the enormous challenge of plugging the infiltration in its ranks that allowed its archenemy Israel to destroy weapons sites, booby-trap its communications and assassinate the veteran leader, whose whereabouts had been a closely guarded secret for years.
Nasrallah's killing in a command headquarters Friday came barely a week after Israel's deadly detonation of hundreds of booby-trapped pagers and radios. It was the culmination of a rapid succession of strikes that have eliminated half of Hezbollah's leadership council and decimated its top military command.
In the days before and hours after Nasrallah's killing, reporters spoke to more than a dozen sources in Lebanon, Israel, Iran and Syria who provided details of the damage Israel has wrought on the powerful Shiite paramilitary group, including to its supply lines and command structure. All asked for anonymity to speak about sensitive matters.
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