TWST: Some people are looking for a rally in gold. Is that what we're going to see from here?

Mr. Preston: Look, I think the gold price is going to fluctuate really around sentiment in Europe, firstly. And then that I think flows into the U.S. dollar, euro and other currencies, depending on moves in exchange rates. I think if we continue to have a period of uncertainty around the debt crisis in Europe, then gold will do well in that sort of a climate. And every time people think that there is going to be some resolution, we start to see a little bit of strengthening in currencies, the appeal of gold dissipates a little bit.

And in particular, as you get people moving into the U.S. dollar as the best of the best in terms of fiat currencies, that is always a little bit negative on gold. But broadly I think gold - that there are more positives for gold than there are negatives. And in particular, the fact that central banks are buyers of gold now, individuals are voting with their feet buying gold. So I think that tells you that people are still concerned about preservation of wealth.

TWST: Central banks, for years, have been net sellers. What's changed that posture?