An ambitious U.S. task force targeting Hezbollah's billion-dollar criminal enterprise ran headlong into the White House's desire for a nuclear deal with Iran.

Part 1.

A global threat emerges.

How Hezbollah turned to trafficking cocaine and laundering money through used cars to finance its expansion.

In its determination to secure a nuclear deal with Iran, the Obama administration derailed an ambitious law enforcement campaign targeting drug trafficking by the Iranian-backed terrorist group Hezbollah, even as it was funneling cocaine into the United States, according to a POLITICO investigation. The campaign, dubbed Project Cassandra, was launched in 2008 after the Drug Enforcement Administration amassed evidence that Hezbollah had transformed itself from a Middle East-focused military and political organization into an international crime syndicate that some investigators believed was collecting $1 billion a year from drug and weapons trafficking, money laundering and other criminal activities.

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