Write an inquisitive question about a specific text span in a given sentence such that the answer is not in the text.
Example: Sentence: The Obama administration is developing additional screening protocols for airline passengers both overseas and in the United States to control infectious diseases such as Ebola, President Barack Obama said Monday .<sep>Span: Obama administration
Example solution: What was the duration of the Obama administration?
Example explanation: It is an inquisitive question based on the specific span of the sentence.

Problem: Sentence: Under mounting pressure from new revelations that the United States collected the telephone data of tens of millions of Europeans , the Obama administration on Monday said that there is a need for new constraints on U . S . intelligence - gathering operations and a top senator announced that the spying on U . S . allies would stop .<sep>Span: U . S . intelligence - gathering operations
Solution: Which agency did this?