During that hearing, Wyden asked Clapper if the NSA collects "any type of data at all on millions or hundreds of millions of Americans?"
"No sir," Clapper answered. "Not wittingly."
Clapper later said he responded in the "least untruthful manner" he could.
Sensenbrenner, during Tuesday's hearing, noted that "lying to Congress is a federal offense."
Holder said he's not in a position to confirm any investigation. Sensenbrenner then asked if there was "any circumstance" when Holder would prosecute a fellow member of the Obama administration.
"Sure," Holder said. "If the person lied, and the determination was made that all the other requirements of the perjury statue was met. We take our responsibility seriously to investigate allegations of perjury."
Sensenbrenner read off the requirements of the perjury statute. "What more do you need besides an admission from General Clapper that he lied?" he said, as time ran out on his turn to question Holder.
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