The ongoing campus protests in the US are being clamped down by heavy-handed police tactics - see article in HuffPost here (thanks to Barry Quinn for the hat tip). This is a worrying sign as freedom of speech and the right to protest are fundamental rights in any democracy.
According to Robert Shiller , speaking at Davos, Bitcoin is a perfect example of a bubble - story here . Shiller sees Bitcoin as a backwards step in the evolution of money. George Selgin , a free banker, takes an opposing view - click here . Although he doesn't believe that Bitcoin is money, he sees its development as a fascinating turn in the evolution of money. In particular, he lauds the fact that Bitcoin production is constrained and cannot be infinite. There is a short video below where Bitcoin explain how it works.