China has a more assertive, proactive foreign policy as its interests are growing around the world.

U.S. exports to China have more than quintupled since China entered the WTO and have grown more quickly than imports. In fact, China is America's fastest-growing export market.

I have always tried to live by the philosophy that when there is a big problem that needs fixing, you should run towards it, rather than away from it.

The Treasury Department has a critical role to play in helping to set the direction of a U.S. and global economy, a role that reaches back to America's founding.

Instead of the cashier and ticket-ripper of the movie theater, the block chain consists of thousands of computers that can process digital tickets, money, and many other fiduciary objects in digital form. Think of thousands of robots wearing green eye shades, all checking each other's accounting.

I feel like touchscreen technology blows my mind still. It just makes me think of all of the sci-fi films I enjoyed as a kid.

I just don't think CGI is up to manipulating the human face yet. I feel like you can get away with it with aliens or monsters or something that's intentionally foreign, but I have yet to see anything digital to do with the human face that doesn't just look ridiculous.

So we should preserve it. I don't think that digital storage is necessarily a good thing, but I definitely think that digital manipulation is interesting.