Whenever you're faced with an explanation of what's going on in Washington, the choice between incompetence and conspiracy, always choose incompetence.

People love conspiracy theories.

The conspiracies that I've researched and encountered, they seem to happen very ad hoc: they become conspiracies when it's necessary to have a conspiracy.

The United States has already experienced the danger of flawed refugee vetting as well as the potential for refugees to be radicalized once they are here. In 2011, two Iraqi refugees were arrested in Kentucky for conspiracy to kill U.S. nationals abroad in support of al-Qaeda in Iraq, the predecessor to ISIL.

I don't believe in conspiracy theories. I'm just a cold-blooded investigator.

Mother Teresa was part of a conspiracy to convert Hindus to Christianity.

Although the evidence at this trial shows that Charles Manson was the leader of the conspiracy to commit these murders, there is no evidence that he actually personally killed any of the seven victims in this case.

We have to challenge lies. We have to challenge falsehoods and conspiracy theories. If you don't, they fester - unchecked and unchallenged.