"The new cooperation [between Hezbollah and al-Qaeda] … includes coordination on explosives and tactics training, money laundering, weapons smuggling and acquiring forged documents, according to knowledgeable sources. This new alliance, even if informal, has greatly concerned U.S. officials in Washington and intelligence operatives abroad who believe the assets and organization of Hezbollah's formidable militant wing will enable a hobbled al Qaeda network to increase its ability to launch attacks against American targets."