Ex-Venezuelan intel chief has 'treasure trove' for U.S.- senior official

Carvajal, who denounced Chavez successor Nicolas Maduro in February, is believed to have information that he will share with U.S. officials about Maduro's ties to Lebanon's Hezbollah and Colombia's National Liberation Army (ELN) and the Revolutionary Armed Forces of Colombia (FARC), among others, the official said, speaking on condition of anonymity.