And, you know, in my opinion, when the FBI uses these sources, there are a lot of internal guidelines on how they can be used and particularly if they touch in any way on First Amendment activity. So you know, journalists, political activity, clergy people - all of those get extra special protection when it comes to FBI investigation.
In 1978, Congress passed the Foreign Intelligence Surveillance Act after hearings exposed the F.B.I.'s egregious practice of illegally spying on civil rights leaders, black nationalists, Communists and Vietnam War protesters.
Having conducted counterintelligence investigations, I can attest that not everything a foreign intelligence service does is necessarily illegal.
Like any country with sophisticated intelligence services, Russia has long been a careful student of U.S. freedoms, laws and the constraints of its main nemesis in the U.S., the FBI.
When it comes to the separation of powers, the Constitution makes it look pretty simple: Congress makes the laws, the president enforces them and the judiciary adjudicates them. In reality, though, the lines between the branches are a little blurrier than they seem on paper.