U.S. Senator Bernie Sanders sent a letter to the NSA on Friday asking, "Has the NSA spied, or is the NSA currently spying, on members of Congress or other American elected officials?" The only acceptable answer ought to be, "No, of course not."
The honest answer: "Yes."

The NSA has spied on members of Congress, but acknowledging that would unnerve millions of Americans. That's why their official response to the letter was so evasive that CNN summed it up, "NSA won't say whether it spies on Congress."