In Washington, demonstrators held up signs reading "Thank you, Edward Snowden!" as they marched and rallied near the U.S. Capitol to demand that Congress investigate the NSA's mass surveillance programs.
This vacuum-cleaner approach to data collection has rattled allies.
"The magnitude of the eavesdropping is what shocked us," former French Foreign Minister Bernard Kouchner said in a radio interview. "Let's be honest, we eavesdrop, too. Everyone is listening to everyone else. But we don't have the same means as the United States, which makes us jealous."
So where in the world isn't the NSA? That's one big question raised by the disclosures. Whether the tapping of allies is a step too far might be moot.
The British ambassador to Lebanon, Tom Fletcher, tweeted this past week: "I work on assumption that 6+ countries tap my phone. Increasingly rare that diplomats say anything sensitive on calls."
Diplomatic relations are built on trust. If America's credibility is in question, the U.S. will find it harder to maintain alliances, influence world opinion and maybe even close trade deals.
To Henry Farrell and Martha Finnemore at George Washington University, damage from the NSA disclosures could "undermine Washington's ability to act hypocritically and get away with it."