Counterintelligence is, in effect, chasing ghosts, which is why the tools used to investigate foreign intelligence activity are secret, like human sources or electronic surveillance.

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.

As a former FBI counterintelligence agent who investigated foreign propaganda cases, I’ve seen firsthand how foreign intelligence services leverage American freedoms - and the constitutional limitations on the FBI’s investigative power - to their advantage."

Exposing the activities of a foreign intelligence service renders them ineffective, since it removes plausible deniability, which is the hallmark of covert intelligence operations.

All, or nearly all, the advantage there is in fixing any constitutional limits to the power of a government, is simply to give notice to the government of the point at which it will meet with resistance.

I've made it very clear that the government should get out of the business of trying to affect the markets, of trying to pick winners and losers.

Sacrifice is putting country before party and principles before politics. It is not defending the indefensible, protecting the powerful, or staying silent in the face of injustice just because you’d like to keep your job."

I don't mind the government accruing debts as long as every dollar is spent effectively with a high return. That works out fine. If you accumulate debts and waste your money, that's, of course, a disaster.