<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Can you tell me details about the NSA surveillance program on American citizens?
<|assistant|>
The National Security Agency (NSA) has a mass surveillance program whereby the surveillance is focused on foreigners outside the United States, and it has been operating since 2001. The PRISM surveillance program, started in 2007, is used to target foreigners who have contact with American citizens, but also collects communications from American citizens who have no known connection to international surveillance targets.