US collected biometric records on 5m Afghanis
... and now those people are at risk due to this very thing, according to some like Margaret Hu, who calls it a lesson in the life-and-death consequences of data collection.
The US left this data behind, along with iris scans and names.
Consortium News commented that the US is going after Assange in part because (they allege) Assange endangered lives by revealing names of informants (when he was actually redacting them).