Which of these was the actual marketing tagline used by the U.S. government to promote its controversial PRISM surveillance program before it became public?

In recent years, governments worldwide have increasingly adopted AI-powered surveillance technologies, often marketed with specific taglines and branding approaches. These marketing strategies can reveal much about how governments position these technologies to various stakeholders. This trivia question tests your knowledge about a famous government surveillance system's marketing tagline that sparked significant public debate about privacy versus security.

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"Knowledge Is Security" - highlighting the program's data collection capabilities
"Protecting Freedom Through Information" - emphasizing its national security benefits
"Digital Shield" - focusing on its defensive cybersecurity aspects
"Transparent Intelligence" - ironically suggesting openness in intelligence gathering