Securities fraud generally and insider trading in particular should be eminently deterrable crimes.

I spoke bluntly about what I had seen in a little over a year as United States Attorney for the Southern District of New York. To the apparent surprise of many in the room, I observed publicly that insider trading appeared to be rampant.

In some respects, inside information is a form of financial steroid. It is unfair: it is offensive; it is unlawful; and it puts a black mark on the entire enterprise.

The alarm bells sound regularly: cybergeddon; the next Pearl Harbor; one of the greatest existential threats facing the United States. With increasing frequency, these are the grave terms officials invoke about the menace of cybercrime - and they're not understating the threat.

I do my job. I love my job. It's the best job I ever had. And it's probably the best job I will ever have. And I serve at the pleasure of the president. That's true of President Obama. That will be true of President Trump. And if and when a president decides that they want to replace me, I'll ride off into the sunset.

I have come to really love the sound of nervous laughter.

I wanted to be a prosecutor - a criminal lawyer - because there's nowhere where the stakes are higher, where you can wake up every day and believe in what you're doing.