I remember that big pallet of

being delivered in the middle of the night. We know about it, thanks to a reporter.
AI Overview
The
Wall Street Journal reported on the Obama administration's secret airlift of $400 million in cash to Iran in January 2016, which coincided with the release of four Americans held in Tehran.
Jay Solomon, a reporter for the Wall Street Journal, broke this story.
The money was part of a larger $1.7 billion settlement of a long-standing claim at the US-Iran Claims Tribunal at The Hague, stemming from a failed arms deal before the 1979 Islamic Revolution.
The timing of the payment, coinciding with the release of prisoners, raised questions about whether it was effectively a "ransom" payment, which the Obama administration denied. The administration maintained that the settlement negotiations and prisoner release discussions were separate, though they occurred concurrently.