Schneier — “Two of the NSA’s internal databases, code-named HAPPYFOOT…”
Source: Data and Goliath: The Hidden Battles to Collect Your Data and Control Your World — Bruce Schneier
Book page: schneier-data-and-goliath-part-1
From: Bruce Schneier — Quotes
Two of the NSA’s internal databases, code-named HAPPYFOOT and FASCIA, contain comprehensive location information of devices worldwide. The NSA uses the databases to track people’s movements, identify people who associate with people of interest, and target drone strikes.