Goldman Sachs considers shutting down its private trading exchange as publicity about high-speed trading and talk of SEC investigations draw attention to the bank. The bank will consider how it profits/benefits from the private exchange versus the cost of scrutiny and negative attention. Are the calculations similar to those in its decision to sell its commodities trading business? Also, the break-up of a graphic design duo has resulted in a lawsuit of $20 million – over fonts. Tobias Frere-Jones and Jonathan Hoefler worked together for 15 years to create some of the most famous and ubiquitous fonts around– used by GQ, Martha Stewart, the New York Jets, and Saturday Night Live. They won awards for their typefaces - before the relationship turned sour. Who knew there was so much money in fonts? Plus: Not to worry, Comcast tells Congress. It needs to merge with Time Warner Cable, so it will have the strength to compete with the real heavyweights in broadband and content delivery – companies like Google and Apple. We examine the argument.